408704909706 has 40 divisors (see below), whose sum is σ = 937099473024. Its totient is φ = 133066712520.

The previous prime is 408704909687. The next prime is 408704909719. The reversal of 408704909706 is 607909407804.

It is a happy number.

408704909706 is a `hidden beast` number, since 4 + 0 + 87 + 0 + 490 + 9 + 70 + 6 = 666.

It is a super-2 number, since 2×408704909706² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29328730 + ... + 29342661.

Almost surely, 2^408704909706 is an apocalyptic number.

408704909706 is an abundant number, since it is smaller than the sum of its proper divisors (528394563318).

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

408704909706 is a wasteful number, since it uses less digits than its factorization.

408704909706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58671448 (or 58671439 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 408704909706 in words is "four hundred eight billion, seven hundred four million, nine hundred nine thousand, seven hundred six".