636004012 has 24 divisors (see below), whose sum is σ = 1276518656. Its totient is φ = 271606608.

The previous prime is 636004003. The next prime is 636004049. The reversal of 636004012 is 210400636.

636004012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×636004012² = 809002206560192288, which contains 22 as substring.

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, 32208 + ... + 48055.

Almost surely, 2^636004012 is an apocalyptic number.

It is an amenable number.

636004012 is an abundant number, since it is smaller than the sum of its proper divisors (640514644).

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

636004012 is a wasteful number, since it uses less digits than its factorization.

636004012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80557 (or 80555 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 636004012 is about 25219.1199687856. The cubic root of 636004012 is about 859.9765686784.

Adding to 636004012 its reverse (210400636), we get a palindrome (846404648).

The spelling of 636004012 in words is "six hundred thirty-six million, four thousand, twelve".