400621036725340 has 48 divisors (see below), whose sum is σ = 896560973263872. Its totient is φ = 150019792467776.

The previous prime is 400621036725337. The next prime is 400621036725419. The reversal of 400621036725340 is 43527630126004.

It is a congruent number.

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, 9265034734 + ... + 9265077973.

It is an arithmetic number, because the mean of its divisors is an integer number (18678353609664).

Almost surely, 2^{400621036725340} is an apocalyptic number.

It is an amenable number.

400621036725340 is an abundant number, since it is smaller than the sum of its proper divisors (495939936538532).

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

400621036725340 is a wasteful number, since it uses less digits than its factorization.

400621036725340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18530112786 (or 18530112784 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 400621036725340 in words is "four hundred trillion, six hundred twenty-one billion, thirty-six million, seven hundred twenty-five thousand, three hundred forty".