64434208 has 24 divisors (see below), whose sum is σ = 127524348. Its totient is φ = 32047104.

The previous prime is 64434203. The next prime is 64434241. The reversal of 64434208 is 80243446.

It can be written as a sum of positive squares in 2 ways, for example, as 64192144 + 242064 = 8012^2 + 492^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64434208.

It is not an unprimeable number, because it can be changed into a prime (64434203) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 960 + ... + 11392.

Almost surely, 2^64434208 is an apocalyptic number.

It is an amenable number.

64434208 is a deficient number, since it is larger than the sum of its proper divisors (63090140).

64434208 is a wasteful number, since it uses less digits than its factorization.

64434208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10636 (or 10628 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 64434208 is about 8027.0921260442. The cubic root of 64434208 is about 400.9025619232.

The spelling of 64434208 in words is "sixty-four million, four hundred thirty-four thousand, two hundred eight".