72244 has 6 divisors (see below), whose sum is σ = 126434. Its totient is φ = 36120.

The previous prime is 72229. The next prime is 72251. The reversal of 72244 is 44227.

It can be written as a sum of positive squares in only one way, i.e., 68644 + 3600 = 262^2 + 60^2 .

It is a congruent number.

It is an unprimeable number.

72244 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9027 + ... + 9034.

2⁷²²⁴⁴ is an apocalyptic number.

It is an amenable number.

72244 is a deficient number, since it is larger than the sum of its proper divisors (54190).

72244 is a wasteful number, since it uses less digits than its factorization.

72244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18065 (or 18063 counting only the distinct ones).

The product of its digits is 448, while the sum is 19.

The square root of 72244 is about 268.7824399026. The cubic root of 72244 is about 41.6486179608.

The spelling of 72244 in words is "seventy-two thousand, two hundred forty-four", and thus it is an iban number.