39400664336 has 20 divisors (see below), whose sum is σ = 83278677264. Its totient is φ = 17909392800.

The previous prime is 39400664323. The next prime is 39400664351. The reversal of 39400664336 is 63346600493.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 111933530 + ... + 111933881.

Almost surely, 2^39400664336 is an apocalyptic number.

It is an amenable number.

39400664336 is an abundant number, since it is smaller than the sum of its proper divisors (43878012928).

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

39400664336 is a wasteful number, since it uses less digits than its factorization.

39400664336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223867430 (or 223867424 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 44.

The spelling of 39400664336 in words is "thirty-nine billion, four hundred million, six hundred sixty-four thousand, three hundred thirty-six".