72549384 has 32 divisors (see below), whose sum is σ = 181789920. Its totient is φ = 24127616.

The previous prime is 72549361. The next prime is 72549403. The reversal of 72549384 is 48394527.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7972 + ... + 14444.

It is an arithmetic number, because the mean of its divisors is an integer number (5680935).

Almost surely, 2^72549384 is an apocalyptic number.

It is an amenable number.

72549384 is an abundant number, since it is smaller than the sum of its proper divisors (109240536).

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

72549384 is a wasteful number, since it uses less digits than its factorization.

72549384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6949 (or 6945 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 72549384 is about 8517.5926176356. The cubic root of 72549384 is about 417.0722002318.

The spelling of 72549384 in words is "seventy-two million, five hundred forty-nine thousand, three hundred eighty-four".