408664031 has 8 divisors (see below), whose sum is σ = 418588800. Its totient is φ = 398839320.

The previous prime is 408663967. The next prime is 408664033. The reversal of 408664031 is 130466804.

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

It is a cyclic number.

It is not a de Polignac number, because 408664031 - 2⁶ = 408663967 is a prime.

It is a super-2 number, since 2×408664031² = 334012580466337922, 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 (408664033) 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, 16715 + ... + 33116.

It is an arithmetic number, because the mean of its divisors is an integer number (52323600).

Almost surely, 2^408664031 is an apocalyptic number.

408664031 is a deficient number, since it is larger than the sum of its proper divisors (9924769).

408664031 is a wasteful number, since it uses less digits than its factorization.

408664031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50029.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 408664031 is about 20215.4404107356. The cubic root of 408664031 is about 742.0881070558.

The spelling of 408664031 in words is "four hundred eight million, six hundred sixty-four thousand, thirty-one".