406712660 has 12 divisors (see below), whose sum is σ = 854096628. Its totient is φ = 162685056.

The previous prime is 406712659. The next prime is 406712737. The reversal of 406712660 is 66217604.

It can be written as a sum of positive squares in 2 ways, for example, as 208860304 + 197852356 = 14452^2 + 14066^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 10167797 + ... + 10167836.

It is an arithmetic number, because the mean of its divisors is an integer number (71174719).

Almost surely, 2^406712660 is an apocalyptic number.

It is an amenable number.

406712660 is an abundant number, since it is smaller than the sum of its proper divisors (447383968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406712660 is a wasteful number, since it uses less digits than its factorization.

406712660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20335642 (or 20335640 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 406712660 is about 20167.1182869541. The cubic root of 406712660 is about 740.9050649878.

The spelling of 406712660 in words is "four hundred six million, seven hundred twelve thousand, six hundred sixty".