406344964 has 9 divisors (see below), whose sum is σ = 711174247. Its totient is φ = 203152324.

The previous prime is 406344959. The next prime is 406344971. The reversal of 406344964 is 469443604.

It is a happy number.

The square root of 406344964 is 20158.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×406344964² = 330232459536322592, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 35277 + ... + 45355.

Almost surely, 2^406344964 is an apocalyptic number.

406344964 is the 20158-th square number.

It is an amenable number.

406344964 is a deficient number, since it is larger than the sum of its proper divisors (304829283).

406344964 is an frugal number, since it uses more digits than its factorization.

406344964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20162 (or 10081 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 40.

The cubic root of 406344964 is about 740.6817214215.

The spelling of 406344964 in words is "four hundred six million, three hundred forty-four thousand, nine hundred sixty-four".