13422636 has 36 divisors (see below), whose sum is σ = 34655712. Its totient is φ = 4378464.

The previous prime is 13422631. The next prime is 13422637. The reversal of 13422636 is 63622431.

13422636 is a `hidden beast` number, since 1 + 3 + 4 + 22 + 636 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13422631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2275 + ... + 5658.

Almost surely, 2^13422636 is an apocalyptic number.

It is an amenable number.

13422636 is an abundant number, since it is smaller than the sum of its proper divisors (21233076).

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

13422636 is a wasteful number, since it uses less digits than its factorization.

13422636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7990 (or 7985 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 13422636 is about 3663.6915809058. The cubic root of 13422636 is about 237.6544428519.

The spelling of 13422636 in words is "thirteen million, four hundred twenty-two thousand, six hundred thirty-six".