401806032904 has 16 divisors (see below), whose sum is σ = 771761588220. Its totient is φ = 196002942720.

The previous prime is 401806032871. The next prime is 401806032961. The reversal of 401806032904 is 409230608104.

It can be written as a sum of positive squares in 2 ways, for example, as 352482064804 + 49323968100 = 593702^2 + 222090^2 .

It is a super-2 number, since 2×401806032904² (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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612508869 + ... + 612509524.

Almost surely, 2^401806032904 is an apocalyptic number.

It is an amenable number.

401806032904 is a deficient number, since it is larger than the sum of its proper divisors (369955555316).

401806032904 is a wasteful number, since it uses less digits than its factorization.

401806032904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225018440 (or 1225018436 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 401806032904 in words is "four hundred one billion, eight hundred six million, thirty-two thousand, nine hundred four".