636160040 has 32 divisors (see below), whose sum is σ = 1461818880. Its totient is φ = 249049152.

The previous prime is 636160003. The next prime is 636160051. The reversal of 636160040 is 40061636.

It is a junction number, because it is equal to n+sod(n) for n = 636159991 and 636160009.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167312 + ... + 171071.

It is an arithmetic number, because the mean of its divisors is an integer number (45681840).

Almost surely, 2^636160040 is an apocalyptic number.

It is an amenable number.

636160040 is an abundant number, since it is smaller than the sum of its proper divisors (825658840).

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

636160040 is a wasteful number, since it uses less digits than its factorization.

636160040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338441 (or 338437 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 636160040 is about 25222.2132256470. The cubic root of 636160040 is about 860.0468876545.

The spelling of 636160040 in words is "six hundred thirty-six million, one hundred sixty thousand, forty".