72520196 has 36 divisors (see below), whose sum is σ = 154058688. Its totient is φ = 29726928.

The previous prime is 72520187. The next prime is 72520211. The reversal of 72520196 is 69102527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3536 + ... + 12551.

It is an arithmetic number, because the mean of its divisors is an integer number (4279408).

Almost surely, 2^72520196 is an apocalyptic number.

It is an amenable number.

72520196 is an abundant number, since it is smaller than the sum of its proper divisors (81538492).

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

72520196 is a wasteful number, since it uses less digits than its factorization.

72520196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16128 (or 16119 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 72520196 is about 8515.8790503388. The cubic root of 72520196 is about 417.0162606974.

The spelling of 72520196 in words is "seventy-two million, five hundred twenty thousand, one hundred ninety-six".