1057700720 has 40 divisors (see below), whose sum is σ = 2460538944. Its totient is φ = 422842112.

The previous prime is 1057700711. The next prime is 1057700741. The reversal of 1057700720 is 270077501.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1057700720² = 2237461626177036800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 231902 + ... + 236418.

Almost surely, 2^1057700720 is an apocalyptic number.

1057700720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1057700720 is an abundant number, since it is smaller than the sum of its proper divisors (1402838224).

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

1057700720 is a wasteful number, since it uses less digits than its factorization.

1057700720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7457 (or 7451 counting only the distinct ones).

The product of its (nonzero) digits is 3430, while the sum is 29.

The square root of 1057700720 is about 32522.3111109896. The cubic root of 1057700720 is about 1018.8750637736.

The spelling of 1057700720 in words is "one billion, fifty-seven million, seven hundred thousand, seven hundred twenty".