72044512 has 24 divisors (see below), whose sum is σ = 143248392. Its totient is φ = 35664000.

The previous prime is 72044507. The next prime is 72044551. The reversal of 72044512 is 21544027.

It is a congruent number.

It is an unprimeable number.

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, 7914 + ... + 14377.

It is an arithmetic number, because the mean of its divisors is an integer number (5968683).

Almost surely, 2^72044512 is an apocalyptic number.

It is an amenable number.

72044512 is a deficient number, since it is larger than the sum of its proper divisors (71203880).

72044512 is a wasteful number, since it uses less digits than its factorization.

72044512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22402 (or 22394 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 72044512 is about 8487.9038637346. The cubic root of 72044512 is about 416.1024772192.

Adding to 72044512 its reverse (21544027), we get a palindrome (93588539).

The spelling of 72044512 in words is "seventy-two million, forty-four thousand, five hundred twelve".