401255751340 has 12 divisors (see below), whose sum is σ = 842637077856. Its totient is φ = 160502300528.

The previous prime is 401255751329. The next prime is 401255751361. The reversal of 401255751340 is 43157552104.

It is a super-2 number, since 2×401255751340² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401255751340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10031393764 + ... + 10031393803.

It is an arithmetic number, because the mean of its divisors is an integer number (70219756488).

Almost surely, 2^401255751340 is an apocalyptic number.

It is an amenable number.

401255751340 is an abundant number, since it is smaller than the sum of its proper divisors (441381326516).

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

401255751340 is a wasteful number, since it uses less digits than its factorization.

401255751340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20062787576 (or 20062787574 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The spelling of 401255751340 in words is "four hundred one billion, two hundred fifty-five million, seven hundred fifty-one thousand, three hundred forty".