72495240 has 64 divisors (see below), whose sum is σ = 218237760. Its totient is φ = 19265280.

The previous prime is 72495233. The next prime is 72495277. The reversal of 72495240 is 4259427.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40770 + ... + 42510.

It is an arithmetic number, because the mean of its divisors is an integer number (3409965).

Almost surely, 2^72495240 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 72495240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109118880).

72495240 is an abundant number, since it is smaller than the sum of its proper divisors (145742520).

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

72495240 is a wasteful number, since it uses less digits than its factorization.

72495240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102 (or 2098 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 72495240 is about 8514.4136615506. The cubic root of 72495240 is about 416.9684199929.

The spelling of 72495240 in words is "seventy-two million, four hundred ninety-five thousand, two hundred forty".