1057204660 has 48 divisors (see below), whose sum is σ = 2319956352. Its totient is φ = 403920000.

The previous prime is 1057204613. The next prime is 1057204667. The reversal of 1057204660 is 664027501.

It is a happy number.

It is a super-2 number, since 2×1057204660² = 2235363386251431200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057204667) 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, 468535 + ... + 470785.

It is an arithmetic number, because the mean of its divisors is an integer number (48332424).

Almost surely, 2^1057204660 is an apocalyptic number.

1057204660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1057204660 is an abundant number, since it is smaller than the sum of its proper divisors (1262751692).

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

1057204660 is a wasteful number, since it uses less digits than its factorization.

1057204660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304 (or 3302 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 1057204660 is about 32514.6837598030. The cubic root of 1057204660 is about 1018.7157552567.

The spelling of 1057204660 in words is "one billion, fifty-seven million, two hundred four thousand, six hundred sixty".