64244 has 6 divisors (see below), whose sum is σ = 112434. Its totient is φ = 32120.

The previous prime is 64237. The next prime is 64271. The reversal of 64244 is 44246.

It can be written as a sum of positive squares in only one way, i.e., 35344 + 28900 = 188^2 + 170^2 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 64244.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8027 + ... + 8034.

It is an arithmetic number, because the mean of its divisors is an integer number (18739).

2⁶⁴²⁴⁴ is an apocalyptic number.

It is an amenable number.

64244 is a deficient number, since it is larger than the sum of its proper divisors (48190).

64244 is a wasteful number, since it uses less digits than its factorization.

64244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16065 (or 16063 counting only the distinct ones).

The product of its digits is 768, while the sum is 20.

The square root of 64244 is about 253.4640013888. The cubic root of 64244 is about 40.0507688691.

It can be divided in two parts, 642 and 44, that added together give a palindrome (686).

The spelling of 64244 in words is "sixty-four thousand, two hundred forty-four".