136644472 has 64 divisors (see below), whose sum is σ = 279417600. Its totient is φ = 62472960.

The previous prime is 136644467. The next prime is 136644499. The reversal of 136644472 is 274446631.

Its product of digits (96768) is a multiple of the sum of its prime divisors (432).

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 15 ways as a sum of consecutive naturals, for example, 444943 + ... + 445249.

It is an arithmetic number, because the mean of its divisors is an integer number (4365900).

Almost surely, 2^136644472 is an apocalyptic number.

It is an amenable number.

136644472 is an abundant number, since it is smaller than the sum of its proper divisors (142773128).

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

136644472 is a wasteful number, since it uses less digits than its factorization.

136644472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 432 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

The square root of 136644472 is about 11689.5026412590. The cubic root of 136644472 is about 515.0673516086.

The spelling of 136644472 in words is "one hundred thirty-six million, six hundred forty-four thousand, four hundred seventy-two".