136642404 has 12 divisors (see below), whose sum is σ = 318832304. Its totient is φ = 45547464.

The previous prime is 136642399. The next prime is 136642459. The reversal of 136642404 is 404246631.

136642404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×136642404² = 37342293141798432, which contains 22 as substring.

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, 5693422 + ... + 5693445.

Almost surely, 2^136642404 is an apocalyptic number.

It is an amenable number.

136642404 is an abundant number, since it is smaller than the sum of its proper divisors (182189900).

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

136642404 is a wasteful number, since it uses less digits than its factorization.

136642404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11386874 (or 11386872 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 136642404 is about 11689.4141854928. The cubic root of 136642404 is about 515.0647532241.

The spelling of 136642404 in words is "one hundred thirty-six million, six hundred forty-two thousand, four hundred four".