64424404 has 24 divisors (see below), whose sum is σ = 125612928. Its totient is φ = 28659840.

The previous prime is 64424389. The next prime is 64424413. The reversal of 64424404 is 40442446.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13509 + ... + 17644.

It is an arithmetic number, because the mean of its divisors is an integer number (5233872).

Almost surely, 2^64424404 is an apocalyptic number.

It is an amenable number.

64424404 is a deficient number, since it is larger than the sum of its proper divisors (61188524).

64424404 is a wasteful number, since it uses less digits than its factorization.

64424404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31215 (or 31213 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 64424404 is about 8026.4814208967. The cubic root of 64424404 is about 400.8822277549.

The spelling of 64424404 in words is "sixty-four million, four hundred twenty-four thousand, four hundred four".