1057805400 has 96 divisors (see below), whose sum is σ = 3284231760. Its totient is φ = 281648640.

The previous prime is 1057805387. The next prime is 1057805407. The reversal of 1057805400 is 45087501.

1057805400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1057805400² = 2237904528538320000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057805407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 654994 + ... + 656606.

Almost surely, 2^1057805400 is an apocalyptic number.

1057805400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1057805400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1642115880).

1057805400 is an abundant number, since it is smaller than the sum of its proper divisors (2226426360).

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

1057805400 is a wasteful number, since it uses less digits than its factorization.

1057805400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2725 (or 2716 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 1057805400 is about 32523.9204278943. The cubic root of 1057805400 is about 1018.9086751476.

The spelling of 1057805400 in words is "one billion, fifty-seven million, eight hundred five thousand, four hundred".