72544219 has 12 divisors (see below), whose sum is σ = 84431592. Its totient is φ = 62068160.

The previous prime is 72544201. The next prime is 72544243. The reversal of 72544219 is 91244527.

It is not a de Polignac number, because 72544219 - 2⁷ = 72544091 is a prime.

It is a super-2 number, since 2×72544219² = 10525327420639922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72544249) 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 11 ways as a sum of consecutive naturals, for example, 15577 + ... + 19690.

It is an arithmetic number, because the mean of its divisors is an integer number (7035966).

Almost surely, 2^72544219 is an apocalyptic number.

72544219 is a deficient number, since it is larger than the sum of its proper divisors (11887373).

72544219 is a wasteful number, since it uses less digits than its factorization.

72544219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35306 (or 35295 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 72544219 is about 8517.2894162404. The cubic root of 72544219 is about 417.0623024724.

It can be divided in two parts, 725 and 44219, that added together give a palindrome (44944).

The spelling of 72544219 in words is "seventy-two million, five hundred forty-four thousand, two hundred nineteen".