400907390874 has 32 divisors (see below), whose sum is σ = 803353499520. Its totient is φ = 133379592192.

The previous prime is 400907390869. The next prime is 400907390887. The reversal of 400907390874 is 478093709004.

It is a happy 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, 6659742 + ... + 6719670.

It is an arithmetic number, because the mean of its divisors is an integer number (25104796860).

Almost surely, 2^400907390874 is an apocalyptic number.

400907390874 is an abundant number, since it is smaller than the sum of its proper divisors (402446108646).

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

400907390874 is a wasteful number, since it uses less digits than its factorization.

400907390874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62054.

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 400907390874 in words is "four hundred billion, nine hundred seven million, three hundred ninety thousand, eight hundred seventy-four".