2179792120 has 64 divisors (see below), whose sum is σ = 5474874240. Its totient is φ = 774211200.

The previous prime is 2179792099. The next prime is 2179792127. The reversal of 2179792120 is 212979712.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2179792127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38686 + ... + 76525.

It is an arithmetic number, because the mean of its divisors is an integer number (85544910).

Almost surely, 2^2179792120 is an apocalyptic number.

2179792120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2179792120 is an abundant number, since it is smaller than the sum of its proper divisors (3295082120).

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

2179792120 is a wasteful number, since it uses less digits than its factorization.

2179792120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115276 (or 115272 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 2179792120 is about 46688.2439164293. The cubic root of 2179792120 is about 1296.5970408076.

The spelling of 2179792120 in words is "two billion, one hundred seventy-nine million, seven hundred ninety-two thousand, one hundred twenty".