402504236740 has 48 divisors (see below), whose sum is σ = 851613315840. Its totient is φ = 159795210240.

The previous prime is 402504236723. The next prime is 402504236741. The reversal of 402504236740 is 47632405204.

It is a self number, because there is not a number n which added to its sum of digits gives 402504236740.

It is not an unprimeable number, because it can be changed into a prime (402504236741) 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, 1542691 + ... + 1784629.

It is an arithmetic number, because the mean of its divisors is an integer number (17741944080).

Almost surely, 2^402504236740 is an apocalyptic number.

It is an amenable number.

402504236740 is an abundant number, since it is smaller than the sum of its proper divisors (449109079100).

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

402504236740 is a wasteful number, since it uses less digits than its factorization.

402504236740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242572 (or 242570 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 37.

The spelling of 402504236740 in words is "four hundred two billion, five hundred four million, two hundred thirty-six thousand, seven hundred forty".