72509376 has 28 divisors (see below), whose sum is σ = 191848232. Its totient is φ = 24169728.

The previous prime is 72509323. The next prime is 72509383. The reversal of 72509376 is 67390527.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188635 + ... + 189018.

Almost surely, 2^72509376 is an apocalyptic number.

It is an amenable number.

72509376 is an abundant number, since it is smaller than the sum of its proper divisors (119338856).

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

72509376 is a wasteful number, since it uses less digits than its factorization.

72509376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377668 (or 377658 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 72509376 is about 8515.2437428414. The cubic root of 72509376 is about 416.9955200825.

The spelling of 72509376 in words is "seventy-two million, five hundred nine thousand, three hundred seventy-six".