2156948304 has 80 divisors (see below), whose sum is σ = 6742747008. Its totient is φ = 580018176.

The previous prime is 2156948273. The next prime is 2156948323. The reversal of 2156948304 is 4038496512.

It is a super-2 number, since 2×2156948304² = 9304851972256952832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183097 + ... + 194520.

Almost surely, 2^2156948304 is an apocalyptic number.

2156948304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2156948304 is an abundant number, since it is smaller than the sum of its proper divisors (4585798704).

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

2156948304 is a wasteful number, since it uses less digits than its factorization.

2156948304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377652 (or 377646 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 2156948304 is about 46442.9575285640. The cubic root of 2156948304 is about 1292.0517604596.

The spelling of 2156948304 in words is "two billion, one hundred fifty-six million, nine hundred forty-eight thousand, three hundred four".