400726254402 has 32 divisors (see below), whose sum is σ = 890588092800. Its totient is φ = 133562622384.

The previous prime is 400726254361. The next prime is 400726254419. The reversal of 400726254402 is 204452627004.

400726254402 is a `hidden beast` number, since 40 + 0 + 72 + 6 + 2 + 544 + 0 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222099 + ... + 922377.

It is an arithmetic number, because the mean of its divisors is an integer number (27830877900).

Almost surely, 2^400726254402 is an apocalyptic number.

400726254402 is an abundant number, since it is smaller than the sum of its proper divisors (489861838398).

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

400726254402 is a wasteful number, since it uses less digits than its factorization.

400726254402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710887 (or 710881 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

The spelling of 400726254402 in words is "four hundred billion, seven hundred twenty-six million, two hundred fifty-four thousand, four hundred two".