400242721706 has 16 divisors (see below), whose sum is σ = 601695743040. Its totient is φ = 199677610080.

The previous prime is 400242721667. The next prime is 400242721849. The reversal of 400242721706 is 607127242004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6554825 + ... + 6615603.

It is an arithmetic number, because the mean of its divisors is an integer number (37605983940).

Almost surely, 2^400242721706 is an apocalyptic number.

400242721706 is a deficient number, since it is larger than the sum of its proper divisors (201453021334).

400242721706 is a wasteful number, since it uses less digits than its factorization.

400242721706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68029.

The product of its (nonzero) digits is 37632, while the sum is 35.

The spelling of 400242721706 in words is "four hundred billion, two hundred forty-two million, seven hundred twenty-one thousand, seven hundred six".