72444844 has 12 divisors (see below), whose sum is σ = 128010064. Its totient is φ = 35870544.

The previous prime is 72444829. The next prime is 72444847. The reversal of 72444844 is 44844427.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (72444847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87507 + ... + 88330.

Almost surely, 2^72444844 is an apocalyptic number.

It is an amenable number.

72444844 is a deficient number, since it is larger than the sum of its proper divisors (55565220).

72444844 is a wasteful number, since it uses less digits than its factorization.

72444844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175944 (or 175942 counting only the distinct ones).

The product of its digits is 114688, while the sum is 37.

The square root of 72444844 is about 8511.4536948749. The cubic root of 72444844 is about 416.8717772723.

The spelling of 72444844 in words is "seventy-two million, four hundred forty-four thousand, eight hundred forty-four".