2163626460 has 72 divisors (see below), whose sum is σ = 6588678096. Its totient is φ = 574709760.

The previous prime is 2163626447. The next prime is 2163626477. The reversal of 2163626460 is 646263612.

2163626460 is a `hidden beast` number, since 2 + 1 + 6 + 3 + 6 + 2 + 646 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22875 + ... + 69645.

It is an arithmetic number, because the mean of its divisors is an integer number (91509418).

Almost surely, 2^2163626460 is an apocalyptic number.

2163626460 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 2163626460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3294339048).

2163626460 is an abundant number, since it is smaller than the sum of its proper divisors (4425051636).

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

2163626460 is a wasteful number, since it uses less digits than its factorization.

2163626460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47043 (or 47038 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 2163626460 is about 46514.7982904366. The cubic root of 2163626460 is about 1293.3838328022.

The spelling of 2163626460 in words is "two billion, one hundred sixty-three million, six hundred twenty-six thousand, four hundred sixty".