72245976 has 64 divisors (see below), whose sum is σ = 198633600. Its totient is φ = 21715200.

The previous prime is 72245917. The next prime is 72245981. The reversal of 72245976 is 67954227.

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, 33540 + ... + 35628.

It is an arithmetic number, because the mean of its divisors is an integer number (3103650).

Almost surely, 2^72245976 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 72245976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99316800).

72245976 is an abundant number, since it is smaller than the sum of its proper divisors (126387624).

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

72245976 is a wasteful number, since it uses less digits than its factorization.

72245976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240 (or 2236 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 72245976 is about 8499.7632908217. The cubic root of 72245976 is about 416.4899767820.

The spelling of 72245976 in words is "seventy-two million, two hundred forty-five thousand, nine hundred seventy-six".