72573384 has 32 divisors (see below), whose sum is σ = 195390720. Its totient is φ = 22330176.

The previous prime is 72573383. The next prime is 72573401. The reversal of 72573384 is 48337527.

It is a super-2 number, since 2×72573384² = 10533792130422912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (72573383) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 115992 + ... + 116615.

It is an arithmetic number, because the mean of its divisors is an integer number (6105960).

Almost surely, 2^72573384 is an apocalyptic number.

It is an amenable number.

72573384 is an abundant number, since it is smaller than the sum of its proper divisors (122817336).

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

72573384 is a wasteful number, since it uses less digits than its factorization.

72573384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232629 (or 232625 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The square root of 72573384 is about 8519.0013499236. The cubic root of 72573384 is about 417.1181855946.

The spelling of 72573384 in words is "seventy-two million, five hundred seventy-three thousand, three hundred eighty-four".