1057407406 has 32 divisors (see below), whose sum is σ = 1753488000. Its totient is φ = 474245280.

The previous prime is 1057407391. The next prime is 1057407413. The reversal of 1057407406 is 6047047501.

It is a happy number.

It is a super-2 number, since 2×1057407406² = 2236220844527297672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 533325 + ... + 535303.

It is an arithmetic number, because the mean of its divisors is an integer number (54796500).

Almost surely, 2^1057407406 is an apocalyptic number.

1057407406 is a deficient number, since it is larger than the sum of its proper divisors (696080594).

1057407406 is a wasteful number, since it uses less digits than its factorization.

1057407406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 1057407406 is about 32517.8013709414. The cubic root of 1057407406 is about 1018.7808726840.

The spelling of 1057407406 in words is "one billion, fifty-seven million, four hundred seven thousand, four hundred six".