401400312904 has 64 divisors (see below), whose sum is σ = 800628546240. Its totient is φ = 188011929600.

The previous prime is 401400312893. The next prime is 401400312917. The reversal of 401400312904 is 409213004104.

It is a super-2 number, since 2×401400312904² (a number of 24 digits) contains 22 as substring.

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, 27021079 + ... + 27035929.

It is an arithmetic number, because the mean of its divisors is an integer number (12509821035).

Almost surely, 2^401400312904 is an apocalyptic number.

It is an amenable number.

401400312904 is a deficient number, since it is larger than the sum of its proper divisors (399228233336).

401400312904 is a wasteful number, since it uses less digits than its factorization.

401400312904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15790 (or 15786 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 401400312904 in words is "four hundred one billion, four hundred million, three hundred twelve thousand, nine hundred four".