406664630 has 16 divisors (see below), whose sum is σ = 732229200. Its totient is φ = 162614112.

The previous prime is 406664623. The next prime is 406664647. The reversal of 406664630 is 36466604.

It is a super-2 number, since 2×406664630² = 330752242586073800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50096 + ... + 57644.

It is an arithmetic number, because the mean of its divisors is an integer number (45764325).

Almost surely, 2^406664630 is an apocalyptic number.

406664630 is a deficient number, since it is larger than the sum of its proper divisors (325564570).

406664630 is a wasteful number, since it uses less digits than its factorization.

406664630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12943.

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 406664630 is about 20165.9274520167. The cubic root of 406664630 is about 740.8758985560.

The spelling of 406664630 in words is "four hundred six million, six hundred sixty-four thousand, six hundred thirty".