72416944 has 20 divisors (see below), whose sum is σ = 145146960. Its totient is φ = 34959680.

The previous prime is 72416933. The next prime is 72416951. The reversal of 72416944 is 44961427.

It is a happy number.

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, 77572 + ... + 78499.

It is an arithmetic number, because the mean of its divisors is an integer number (7257348).

Almost surely, 2^72416944 is an apocalyptic number.

It is an amenable number.

72416944 is an abundant number, since it is smaller than the sum of its proper divisors (72730016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72416944 is a wasteful number, since it uses less digits than its factorization.

72416944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156108 (or 156102 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 72416944 is about 8509.8145690726. The cubic root of 72416944 is about 416.8182551014.

The spelling of 72416944 in words is "seventy-two million, four hundred sixteen thousand, nine hundred forty-four".