72384972 has 24 divisors (see below), whose sum is σ = 184252992. Its totient is φ = 21934800.

The previous prime is 72384971. The next prime is 72384973. The reversal of 72384972 is 27948327.

It is an interprime number because it is at equal distance from previous prime (72384971) and next prime (72384973).

It is not an unprimeable number, because it can be changed into a prime (72384971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274054 + ... + 274317.

It is an arithmetic number, because the mean of its divisors is an integer number (7677208).

Almost surely, 2^72384972 is an apocalyptic number.

It is an amenable number.

72384972 is an abundant number, since it is smaller than the sum of its proper divisors (111868020).

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

72384972 is a wasteful number, since it uses less digits than its factorization.

72384972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548389 (or 548387 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 72384972 is about 8507.9358248637. The cubic root of 72384972 is about 416.7569044735.

The spelling of 72384972 in words is "seventy-two million, three hundred eighty-four thousand, nine hundred seventy-two".