406264006404 has 48 divisors (see below), whose sum is σ = 1060854625600. Its totient is φ = 134447076288.

The previous prime is 406264006381. The next prime is 406264006441. The reversal of 406264006404 is 404600462604.

It is a happy number.

406264006404 is a `hidden beast` number, since 4 + 0 + 6 + 2 + 6 + 4 + 0 + 0 + 640 + 4 = 666.

It is a super-2 number, since 2×406264006404² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13516297 + ... + 13546320.

Almost surely, 2^406264006404 is an apocalyptic number.

It is an amenable number.

406264006404 is an abundant number, since it is smaller than the sum of its proper divisors (654590619196).

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

406264006404 is a wasteful number, since it uses less digits than its factorization.

406264006404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27062769 (or 27062761 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 406264006404 in words is "four hundred six billion, two hundred sixty-four million, six thousand, four hundred four".