72219648 has 44 divisors (see below), whose sum is σ = 192499880. Its totient is φ = 24072192.

The previous prime is 72219643. The next prime is 72219649. The reversal of 72219648 is 84691227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72219643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8683 + ... + 14826.

Almost surely, 2^72219648 is an apocalyptic number.

It is an amenable number.

72219648 is an abundant number, since it is smaller than the sum of its proper divisors (120280232).

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

72219648 is a wasteful number, since it uses less digits than its factorization.

72219648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23532 (or 23514 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 72219648 is about 8498.2144006844. The cubic root of 72219648 is about 416.4393779760.

The spelling of 72219648 in words is "seventy-two million, two hundred nineteen thousand, six hundred forty-eight".