406380976 has 10 divisors (see below), whose sum is σ = 787363172. Its totient is φ = 203190480.

The previous prime is 406380913. The next prime is 406380991. The reversal of 406380976 is 679083604.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12699390 + ... + 12699421.

Almost surely, 2^406380976 is an apocalyptic number.

It is an amenable number.

406380976 is a deficient number, since it is larger than the sum of its proper divisors (380982196).

406380976 is a wasteful number, since it uses less digits than its factorization.

406380976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25398819 (or 25398813 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 406380976 is about 20158.8932235874. The cubic root of 406380976 is about 740.7036015518.

The spelling of 406380976 in words is "four hundred six million, three hundred eighty thousand, nine hundred seventy-six".