1057808 has 20 divisors (see below), whose sum is σ = 2170620. Its totient is φ = 497664.

The previous prime is 1057807. The next prime is 1057831. The reversal of 1057808 is 8087501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 795664 + 262144 = 892^2 + 512^2 .

It is a super-2 number, since 2×1057808² = 2237915529728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1673 + ... + 2216.

It is an arithmetic number, because the mean of its divisors is an integer number (108531).

2^1057808 is an apocalyptic number.

It is an amenable number.

1057808 is an abundant number, since it is smaller than the sum of its proper divisors (1112812).

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

1057808 is a wasteful number, since it uses less digits than its factorization.

1057808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914 (or 3908 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 1057808 is about 1028.4979338822. The cubic root of 1057808 is about 101.8909509945.

It can be divided in two parts, 105 and 7808, that multiplied together give a triangular number (819840 = T₁₂₈₀).

The spelling of 1057808 in words is "one million, fifty-seven thousand, eight hundred eight".