400893113 has 16 divisors (see below), whose sum is σ = 424394640. Its totient is φ = 378233856.

The previous prime is 400893109. The next prime is 400893131. The reversal of 400893113 is 311398004.

It can be written as a sum of positive squares in 8 ways, for example, as 10316944 + 390576169 = 3212^2 + 19763^2 .

It is a cyclic number.

It is not a de Polignac number, because 400893113 - 2² = 400893109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400893413) 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, 173381 + ... + 175677.

It is an arithmetic number, because the mean of its divisors is an integer number (26524665).

Almost surely, 2^400893113 is an apocalyptic number.

It is an amenable number.

400893113 is a deficient number, since it is larger than the sum of its proper divisors (23501527).

400893113 is a wasteful number, since it uses less digits than its factorization.

400893113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 400893113 is about 20022.3153756003. The cubic root of 400893113 is about 737.3542681694.

The spelling of 400893113 in words is "four hundred million, eight hundred ninety-three thousand, one hundred thirteen".