64413868 has 12 divisors (see below), whose sum is σ = 114851520. Its totient is φ = 31599152.

The previous prime is 64413863. The next prime is 64413931. The reversal of 64413868 is 86831446.

It is a self number, because there is not a number n which added to its sum of digits gives 64413868.

It is not an unprimeable number, because it can be changed into a prime (64413863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151708 + ... + 152131.

It is an arithmetic number, because the mean of its divisors is an integer number (9570960).

Almost surely, 2^64413868 is an apocalyptic number.

It is an amenable number.

64413868 is a deficient number, since it is larger than the sum of its proper divisors (50437652).

64413868 is a wasteful number, since it uses less digits than its factorization.

64413868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303896 (or 303894 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The square root of 64413868 is about 8025.8250666209. The cubic root of 64413868 is about 400.8603730686.

The spelling of 64413868 in words is "sixty-four million, four hundred thirteen thousand, eight hundred sixty-eight".