72452248 has 64 divisors (see below), whose sum is σ = 155675520. Its totient is φ = 31315200.

The previous prime is 72452213. The next prime is 72452251. The reversal of 72452248 is 84225427.

It is a congruent number.

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, 154911 + ... + 155377.

It is an arithmetic number, because the mean of its divisors is an integer number (2432430).

Almost surely, 2^72452248 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 72452248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77837760).

72452248 is an abundant number, since it is smaller than the sum of its proper divisors (83223272).

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

72452248 is a wasteful number, since it uses less digits than its factorization.

72452248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 564 counting only the distinct ones).

The product of its digits is 35840, while the sum is 34.

The square root of 72452248 is about 8511.8886270909. Note that the first 3 decimals coincide. The cubic root of 72452248 is about 416.8859784831.

The spelling of 72452248 in words is "seventy-two million, four hundred fifty-two thousand, two hundred forty-eight".