64228064 has 24 divisors (see below), whose sum is σ = 127166760. Its totient is φ = 31931776.

The previous prime is 64228013. The next prime is 64228079. The reversal of 64228064 is 46082246.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 64228064.

It is a congruent number.

It is an unprimeable number.

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, 122 + ... + 11334.

It is an arithmetic number, because the mean of its divisors is an integer number (5298615).

Almost surely, 2^64228064 is an apocalyptic number.

It is an amenable number.

64228064 is a deficient number, since it is larger than the sum of its proper divisors (62938696).

64228064 is a wasteful number, since it uses less digits than its factorization.

64228064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11402 (or 11394 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 64228064 is about 8014.2413240431. The cubic root of 64228064 is about 400.4745700688.

The spelling of 64228064 in words is "sixty-four million, two hundred twenty-eight thousand, sixty-four".