72219296 has 24 divisors (see below), whose sum is σ = 143900064. Its totient is φ = 35673280.

The previous prime is 72219271. The next prime is 72219311. The reversal of 72219296 is 69291227.

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, 10940 + ... + 16251.

It is an arithmetic number, because the mean of its divisors is an integer number (5995836).

Almost surely, 2^72219296 is an apocalyptic number.

It is an amenable number.

72219296 is a deficient number, since it is larger than the sum of its proper divisors (71680768).

72219296 is a wasteful number, since it uses less digits than its factorization.

72219296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27284 (or 27276 counting only the distinct ones).

The product of its digits is 27216, while the sum is 38.

The square root of 72219296 is about 8498.1936904262. The cubic root of 72219296 is about 416.4387013969.

The spelling of 72219296 in words is "seventy-two million, two hundred nineteen thousand, two hundred ninety-six".