72425988 has 60 divisors (see below), whose sum is σ = 197588160. Its totient is φ = 23089968.

The previous prime is 72425959. The next prime is 72425993. The reversal of 72425988 is 88952427.

It is a super-2 number, since 2×72425988² = 10491047475552288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2593 + ... + 12311.

It is an arithmetic number, because the mean of its divisors is an integer number (3293136).

Almost surely, 2^72425988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72425988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98794080).

72425988 is an abundant number, since it is smaller than the sum of its proper divisors (125162172).

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

72425988 is a wasteful number, since it uses less digits than its factorization.

72425988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9758 (or 9747 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 72425988 is about 8510.3459389146. The cubic root of 72425988 is about 416.8356062311.

The spelling of 72425988 in words is "seventy-two million, four hundred twenty-five thousand, nine hundred eighty-eight".