400350125508 has 48 divisors (see below), whose sum is σ = 976085053440. Its totient is φ = 127475070624.

The previous prime is 400350125507. The next prime is 400350125537. The reversal of 400350125508 is 805521053004.

It is not an unprimeable number, because it can be changed into a prime (400350125501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 777460 + ... + 1185387.

It is an arithmetic number, because the mean of its divisors is an integer number (20335105280).

Almost surely, 2^400350125508 is an apocalyptic number.

It is an amenable number.

400350125508 is an abundant number, since it is smaller than the sum of its proper divisors (575734927932).

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

400350125508 is a wasteful number, since it uses less digits than its factorization.

400350125508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963616 (or 1963614 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 400350125508 in words is "four hundred billion, three hundred fifty million, one hundred twenty-five thousand, five hundred eight".