64430136 has 48 divisors (see below), whose sum is σ = 184766400. Its totient is φ = 20212992.

The previous prime is 64430129. The next prime is 64430137. The reversal of 64430136 is 63103446.

64430136 is a `hidden beast` number, since 644 + 3 + 0 + 13 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64430137) 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, 25096 + ... + 27543.

It is an arithmetic number, because the mean of its divisors is an integer number (3849300).

Almost surely, 2^64430136 is an apocalyptic number.

It is an amenable number.

64430136 is an abundant number, since it is smaller than the sum of its proper divisors (120336264).

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

64430136 is a wasteful number, since it uses less digits than its factorization.

64430136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52668 (or 52661 counting only the distinct ones).

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

The square root of 64430136 is about 8026.8384809961. The cubic root of 64430136 is about 400.8941165664.

The spelling of 64430136 in words is "sixty-four million, four hundred thirty thousand, one hundred thirty-six".