72289604 has 24 divisors (see below), whose sum is σ = 133459200. Its totient is φ = 34166880.

The previous prime is 72289577. The next prime is 72289643. The reversal of 72289604 is 40698227.

It is a super-3 number, since 3×72289604³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

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 7 ways as a sum of consecutive naturals, for example, 49517 + ... + 50955.

It is an arithmetic number, because the mean of its divisors is an integer number (5560800).

Almost surely, 2^72289604 is an apocalyptic number.

It is an amenable number.

72289604 is a deficient number, since it is larger than the sum of its proper divisors (61169596).

72289604 is a wasteful number, since it uses less digits than its factorization.

72289604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123 (or 2121 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 72289604 is about 8502.3293278960. The cubic root of 72289604 is about 416.5737967597.

The spelling of 72289604 in words is "seventy-two million, two hundred eighty-nine thousand, six hundred four".