400044088408 has 32 divisors (see below), whose sum is σ = 771212877120. Its totient is φ = 194423328000.

The previous prime is 400044088391. The next prime is 400044088427. The reversal of 400044088408 is 804880440004.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2161383 + ... + 2339158.

It is an arithmetic number, because the mean of its divisors is an integer number (24100402410).

Almost surely, 2^400044088408 is an apocalyptic number.

It is an amenable number.

400044088408 is a deficient number, since it is larger than the sum of its proper divisors (371168788712).

400044088408 is a wasteful number, since it uses less digits than its factorization.

400044088408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4500859 (or 4500855 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The spelling of 400044088408 in words is "four hundred billion, forty-four million, eighty-eight thousand, four hundred eight".