406462664 has 16 divisors (see below), whose sum is σ = 762428700. Its totient is φ = 203148352.

The previous prime is 406462621. The next prime is 406462681. The reversal of 406462664 is 466264604.

It can be written as a sum of positive squares in 2 ways, for example, as 363664900 + 42797764 = 19070^2 + 6542^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13742 + ... + 31650.

Almost surely, 2^406462664 is an apocalyptic number.

It is an amenable number.

406462664 is a deficient number, since it is larger than the sum of its proper divisors (355966036).

406462664 is a wasteful number, since it uses less digits than its factorization.

406462664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20752 (or 20748 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The square root of 406462664 is about 20160.9192250750. The cubic root of 406462664 is about 740.7532286633.

The spelling of 406462664 in words is "four hundred six million, four hundred sixty-two thousand, six hundred sixty-four".