400723994034 has 48 divisors (see below), whose sum is σ = 1068597321792. Its totient is φ = 105685448544.

The previous prime is 400723994003. The next prime is 400723994057. The reversal of 400723994034 is 430499327004.

400723994034 is a `hidden beast` number, since 4 + 0 + 0 + 7 + 239 + 9 + 403 + 4 = 666.

It is a super-4 number, since 4×400723994034⁴ (a number of 48 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

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 23 ways as a sum of consecutive naturals, for example, 122319484 + ... + 122322759.

It is an arithmetic number, because the mean of its divisors is an integer number (22262444204).

Almost surely, 2^400723994034 is an apocalyptic number.

400723994034 is an abundant number, since it is smaller than the sum of its proper divisors (667873327758).

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

400723994034 is a wasteful number, since it uses less digits than its factorization.

400723994034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244642271 (or 244642268 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 400723994034 in words is "four hundred billion, seven hundred twenty-three million, nine hundred ninety-four thousand, thirty-four".