401858512960 has 28 divisors (see below), whose sum is σ = 956925584748. Its totient is φ = 160743405056.

The previous prime is 401858512949. The next prime is 401858512961. The reversal of 401858512960 is 69215858104.

It can be written as a sum of positive squares in 2 ways, for example, as 177834263616 + 224024249344 = 421704^2 + 473312^2 .

It is a super-2 number, since 2×401858512960² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401858512961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627903607 + ... + 627904246.

It is an arithmetic number, because the mean of its divisors is an integer number (34175913741).

Almost surely, 2^401858512960 is an apocalyptic number.

401858512960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401858512960 is an abundant number, since it is smaller than the sum of its proper divisors (555067071788).

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

401858512960 is a wasteful number, since it uses less digits than its factorization.

401858512960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255807870 (or 1255807860 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 49.

The spelling of 401858512960 in words is "four hundred one billion, eight hundred fifty-eight million, five hundred twelve thousand, nine hundred sixty".