1056904668 has 36 divisors (see below), whose sum is σ = 2692668160. Its totient is φ = 349526016.

The previous prime is 1056904649. The next prime is 1056904679. The reversal of 1056904668 is 8664096501.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1056904668² = 2234094954480380448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111013 + ... + 120156.

Almost surely, 2^1056904668 is an apocalyptic number.

1056904668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1056904668 is an abundant number, since it is smaller than the sum of its proper divisors (1635763492).

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

1056904668 is a wasteful number, since it uses less digits than its factorization.

1056904668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231306 (or 231301 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 1056904668 is about 32510.0702552301. The cubic root of 1056904668 is about 1018.6193893403.

The spelling of 1056904668 in words is "one billion, fifty-six million, nine hundred four thousand, six hundred sixty-eight".