400814007 has 32 divisors (see below), whose sum is σ = 600898560. Its totient is φ = 235509120.

The previous prime is 400813999. The next prime is 400814027. The reversal of 400814007 is 700418004.

It is not a de Polignac number, because 400814007 - 2³ = 400813999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400814027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 564969 + ... + 565677.

It is an arithmetic number, because the mean of its divisors is an integer number (18778080).

Almost surely, 2^400814007 is an apocalyptic number.

400814007 is a deficient number, since it is larger than the sum of its proper divisors (200084553).

400814007 is a wasteful number, since it uses less digits than its factorization.

400814007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 400814007 is about 20020.3398322806. The cubic root of 400814007 is about 737.3057656452.

The spelling of 400814007 in words is "four hundred million, eight hundred fourteen thousand, seven".