400120343021004 has 24 divisors (see below), whose sum is σ = 958846948141488. Its totient is φ = 129768759898560.

The previous prime is 400120343020999. The next prime is 400120343021023.

400120343021004 is nontrivially palindromic in base 10.

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, 450585971427 + ... + 450585972314.

It is an arithmetic number, because the mean of its divisors is an integer number (39951956172562).

Almost surely, 2^{400120343021004} is an apocalyptic number.

It is an amenable number.

400120343021004 is an abundant number, since it is smaller than the sum of its proper divisors (558726605120484).

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

400120343021004 is a wasteful number, since it uses less digits than its factorization.

400120343021004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901171943785 (or 901171943783 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The spelling of 400120343021004 in words is "four hundred trillion, one hundred twenty billion, three hundred forty-three million, twenty-one thousand, four".