402424079256 has 128 divisors (see below), whose sum is σ = 1130088960000. Its totient is φ = 132673821696.

The previous prime is 402424079207. The next prime is 402424079257. The reversal of 402424079256 is 652970424204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402424079257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38693145 + ... + 38703543.

It is an arithmetic number, because the mean of its divisors is an integer number (8828820000).

Almost surely, 2^402424079256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402424079256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (565044480000).

402424079256 is an abundant number, since it is smaller than the sum of its proper divisors (727664880744).

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

402424079256 is a wasteful number, since it uses less digits than its factorization.

402424079256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12358 (or 12348 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 402424079256 in words is "four hundred two billion, four hundred twenty-four million, seventy-nine thousand, two hundred fifty-six".