64444852 has 24 divisors (see below), whose sum is σ = 114660000. Its totient is φ = 31688736.

The previous prime is 64444843. The next prime is 64444859. The reversal of 64444852 is 25844446.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64444859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128899 + ... + 129397.

It is an arithmetic number, because the mean of its divisors is an integer number (4777500).

Almost surely, 2^64444852 is an apocalyptic number.

It is an amenable number.

64444852 is a deficient number, since it is larger than the sum of its proper divisors (50215148).

64444852 is a wasteful number, since it uses less digits than its factorization.

64444852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975 (or 973 counting only the distinct ones).

The product of its digits is 122880, while the sum is 37.

The square root of 64444852 is about 8027.7551033897. The cubic root of 64444852 is about 400.9246359739.

The spelling of 64444852 in words is "sixty-four million, four hundred forty-four thousand, eight hundred fifty-two".