2179385460 has 192 divisors, whose sum is σ = 7774986240. Its totient is φ = 496471680.

The previous prime is 2179385449. The next prime is 2179385471. The reversal of 2179385460 is 645839712.

2179385460 is a `hidden beast` number, since 2 + 1 + 79 + 38 + 546 + 0 = 666.

2179385460 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2179385449) and next prime (2179385471).

It is a Harshad number since it is a multiple of its sum of digits (45).

2179385460 is strictly pandigital in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1386475 + ... + 1388045.

It is an arithmetic number, because the mean of its divisors is an integer number (40494720).

It is a 1-persistent number, because it is pandigital, but 2⋅2179385460 = 4358770920 is not.

Almost surely, 2^2179385460 is an apocalyptic number.

2179385460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2179385460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3887493120).

2179385460 is an abundant number, since it is smaller than the sum of its proper divisors (5595600780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2179385460 is a wasteful number, since it uses less digits than its factorization.

2179385460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963 (or 1955 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2179385460 is about 46683.8886555094. Note that the first 3 decimals coincide. The cubic root of 2179385460 is about 1296.5164051451.

The spelling of 2179385460 in words is "two billion, one hundred seventy-nine million, three hundred eighty-five thousand, four hundred sixty".