64367944 has 16 divisors (see below), whose sum is σ = 121359420. Its totient is φ = 32005440.

The previous prime is 64367903. The next prime is 64367971. The reversal of 64367944 is 44976346.

64367944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 48860100 + 15507844 = 6990^2 + 3938^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64367944.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20779 + ... + 23674.

Almost surely, 2^64367944 is an apocalyptic number.

It is an amenable number.

64367944 is a deficient number, since it is larger than the sum of its proper divisors (56991476).

64367944 is a wasteful number, since it uses less digits than its factorization.

64367944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44640 (or 44636 counting only the distinct ones).

The product of its digits is 435456, while the sum is 43.

The square root of 64367944 is about 8022.9635422330. The cubic root of 64367944 is about 400.7650856768.

The spelling of 64367944 in words is "sixty-four million, three hundred sixty-seven thousand, nine hundred forty-four".