136908444 has 24 divisors (see below), whose sum is σ = 320306560. Its totient is φ = 45514224.

The previous prime is 136908439. The next prime is 136908451. The reversal of 136908444 is 444809631.

It is a happy number.

It is a super-2 number, since 2×136908444² = 37487844077002272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10504 + ... + 19599.

Almost surely, 2^136908444 is an apocalyptic number.

It is an amenable number.

136908444 is an abundant number, since it is smaller than the sum of its proper divisors (183398116).

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

136908444 is a wasteful number, since it uses less digits than its factorization.

136908444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30489 (or 30487 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 136908444 is about 11700.7881785801. The cubic root of 136908444 is about 515.3988100734.

The spelling of 136908444 in words is "one hundred thirty-six million, nine hundred eight thousand, four hundred forty-four".