402503924240 has 80 divisors (see below), whose sum is σ = 1028689713216. Its totient is φ = 145247731200.

The previous prime is 402503924239. The next prime is 402503924279. The reversal of 402503924240 is 42429305204.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 402503924240.

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, 1630487 + ... + 1861046.

Almost surely, 2^402503924240 is an apocalyptic number.

402503924240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402503924240 is an abundant number, since it is smaller than the sum of its proper divisors (626185788976).

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

402503924240 is a wasteful number, since it uses less digits than its factorization.

402503924240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491688 (or 3491682 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 402503924240 in words is "four hundred two billion, five hundred three million, nine hundred twenty-four thousand, two hundred forty".