64412644 has 12 divisors (see below), whose sum is σ = 112783104. Its totient is φ = 32188904.

The previous prime is 64412639. The next prime is 64412659. The reversal of 64412644 is 44621446.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7629 + ... + 13675.

It is an arithmetic number, because the mean of its divisors is an integer number (9398592).

Almost surely, 2^64412644 is an apocalyptic number.

It is an amenable number.

64412644 is a deficient number, since it is larger than the sum of its proper divisors (48370460).

64412644 is a wasteful number, since it uses less digits than its factorization.

64412644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8714 (or 8712 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

The square root of 64412644 is about 8025.7488124162. The cubic root of 64412644 is about 400.8578339870.

It can be divided in two parts, 64412 and 644, that added together give a palindrome (65056).

The spelling of 64412644 in words is "sixty-four million, four hundred twelve thousand, six hundred forty-four".