64435218 has 16 divisors (see below), whose sum is σ = 129426336. Its totient is φ = 21385760.

The previous prime is 64435211. The next prime is 64435223. The reversal of 64435218 is 81253446.

64435218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (64435211) 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 7 ways as a sum of consecutive naturals, for example, 21648 + ... + 24443.

It is an arithmetic number, because the mean of its divisors is an integer number (8089146).

Almost surely, 2^64435218 is an apocalyptic number.

64435218 is an abundant number, since it is smaller than the sum of its proper divisors (64991118).

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

64435218 is a wasteful number, since it uses less digits than its factorization.

64435218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46329.

The product of its digits is 23040, while the sum is 33.

The square root of 64435218 is about 8027.1550377453. The cubic root of 64435218 is about 400.9046566152.

The spelling of 64435218 in words is "sixty-four million, four hundred thirty-five thousand, two hundred eighteen".