402494558140 has 12 divisors (see below), whose sum is σ = 845238572136. Its totient is φ = 160997823248.

The previous prime is 402494558119. The next prime is 402494558233. The reversal of 402494558140 is 41855494204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10062363934 + ... + 10062363973.

It is an arithmetic number, because the mean of its divisors is an integer number (70436547678).

Almost surely, 2^402494558140 is an apocalyptic number.

It is an amenable number.

402494558140 is an abundant number, since it is smaller than the sum of its proper divisors (442744013996).

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

402494558140 is a wasteful number, since it uses less digits than its factorization.

402494558140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20124727916 (or 20124727914 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 46.

The spelling of 402494558140 in words is "four hundred two billion, four hundred ninety-four million, five hundred fifty-eight thousand, one hundred forty".