400466631 has 8 divisors (see below), whose sum is σ = 534751600. Its totient is φ = 266579712.

The previous prime is 400466623. The next prime is 400466641. The reversal of 400466631 is 136664004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 400466631 - 2³ = 400466623 is a prime.

It is a super-2 number, since 2×400466631² = 320747045088980322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400466641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97156 + ... + 101193.

It is an arithmetic number, because the mean of its divisors is an integer number (66843950).

Almost surely, 2^400466631 is an apocalyptic number.

400466631 is a deficient number, since it is larger than the sum of its proper divisors (134284969).

400466631 is a wasteful number, since it uses less digits than its factorization.

400466631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199025.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 400466631 is about 20011.6623747254. The cubic root of 400466631 is about 737.0927022704.

The spelling of 400466631 in words is "four hundred million, four hundred sixty-six thousand, six hundred thirty-one".