72288908 has 36 divisors (see below), whose sum is σ = 133781760. Its totient is φ = 34173216.

The previous prime is 72288899. The next prime is 72288919. The reversal of 72288908 is 80988227.

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 11 ways as a sum of consecutive naturals, for example, 268598 + ... + 268866.

It is an arithmetic number, because the mean of its divisors is an integer number (3716160).

Almost surely, 2^72288908 is an apocalyptic number.

It is an amenable number.

72288908 is a deficient number, since it is larger than the sum of its proper divisors (61492852).

72288908 is a wasteful number, since it uses less digits than its factorization.

72288908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 72288908 is about 8502.2883978374. The cubic root of 72288908 is about 416.5724598396.

The spelling of 72288908 in words is "seventy-two million, two hundred eighty-eight thousand, nine hundred eight".