64436416 has 28 divisors (see below), whose sum is σ = 139491720. Its totient is φ = 29288960.

The previous prime is 64436413. The next prime is 64436417. The reversal of 64436416 is 61463446.

64436416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (64436413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45061 + ... + 46468.

Almost surely, 2^64436416 is an apocalyptic number.

It is an amenable number.

64436416 is an abundant number, since it is smaller than the sum of its proper divisors (75055304).

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

64436416 is a wasteful number, since it uses less digits than its factorization.

64436416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91552 (or 91542 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 64436416 is about 8027.2296591041. The cubic root of 64436416 is about 400.9071411820.

The spelling of 64436416 in words is "sixty-four million, four hundred thirty-six thousand, four hundred sixteen".