1057864904 has 8 divisors (see below), whose sum is σ = 1983496710. Its totient is φ = 528932448.

The previous prime is 1057864897. The next prime is 1057864909. The reversal of 1057864904 is 4094687501.

It can be written as a sum of positive squares in only one way, i.e., 785680900 + 272184004 = 28030^2 + 16498^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1057864904² = 2238156310229858432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057864909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66116549 + ... + 66116564.

Almost surely, 2^1057864904 is an apocalyptic number.

It is an amenable number.

1057864904 is a deficient number, since it is larger than the sum of its proper divisors (925631806).

1057864904 is a wasteful number, since it uses less digits than its factorization.

1057864904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132233119 (or 132233115 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 1057864904 is about 32524.8351878991. The cubic root of 1057864904 is about 1018.9277801124.

The spelling of 1057864904 in words is "one billion, fifty-seven million, eight hundred sixty-four thousand, nine hundred four".