72204528 has 40 divisors (see below), whose sum is σ = 203486976. Its totient is φ = 21880000.

The previous prime is 72204527. The next prime is 72204533. The reversal of 72204528 is 82540227.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 72204495 and 72204504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72204527) 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, 67848 + ... + 68903.

Almost surely, 2^72204528 is an apocalyptic number.

It is an amenable number.

72204528 is an abundant number, since it is smaller than the sum of its proper divisors (131282448).

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

72204528 is a wasteful number, since it uses less digits than its factorization.

72204528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136773 (or 136767 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 72204528 is about 8497.3247554745. The cubic root of 72204528 is about 416.4103138499.

The spelling of 72204528 in words is "seventy-two million, two hundred four thousand, five hundred twenty-eight".