64446252 has 96 divisors (see below), whose sum is σ = 180633600. Its totient is φ = 17667072.

The previous prime is 64446227. The next prime is 64446257. The reversal of 64446252 is 25264446.

It is not an unprimeable number, because it can be changed into a prime (64446257) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 49749 + ... + 51027.

It is an arithmetic number, because the mean of its divisors is an integer number (1881600).

Almost surely, 2^64446252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64446252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90316800).

64446252 is an abundant number, since it is smaller than the sum of its proper divisors (116187348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64446252 is a wasteful number, since it uses less digits than its factorization.

64446252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1333 counting only the distinct ones).

The product of its digits is 46080, while the sum is 33.

The square root of 64446252 is about 8027.8423003943. The cubic root of 64446252 is about 400.9275391819.

The spelling of 64446252 in words is "sixty-four million, four hundred forty-six thousand, two hundred fifty-two".