72229372 has 24 divisors (see below), whose sum is σ = 133958160. Its totient is φ = 34016640.

The previous prime is 72229369. The next prime is 72229397. The reversal of 72229372 is 27392227.

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 7 ways as a sum of consecutive naturals, for example, 2838 + ... + 12349.

It is an arithmetic number, because the mean of its divisors is an integer number (5581590).

Almost surely, 2^72229372 is an apocalyptic number.

It is an amenable number.

72229372 is a deficient number, since it is larger than the sum of its proper divisors (61728788).

72229372 is a wasteful number, since it uses less digits than its factorization.

72229372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15261 (or 15259 counting only the distinct ones).

The product of its digits is 21168, while the sum is 34.

The square root of 72229372 is about 8498.7865016130. The cubic root of 72229372 is about 416.4580676026.

The spelling of 72229372 in words is "seventy-two million, two hundred twenty-nine thousand, three hundred seventy-two".