72504412 has 12 divisors (see below), whose sum is σ = 130975936. Its totient is φ = 35082720.

The previous prime is 72504391. The next prime is 72504431. The reversal of 72504412 is 21440527.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 292233 + ... + 292480.

Almost surely, 2^72504412 is an apocalyptic number.

It is an amenable number.

72504412 is a deficient number, since it is larger than the sum of its proper divisors (58471524).

72504412 is a wasteful number, since it uses less digits than its factorization.

72504412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584748 (or 584746 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 72504412 is about 8514.9522605826. The cubic root of 72504412 is about 416.9860040120.

Adding to 72504412 its reverse (21440527), we get a palindrome (93944939).

The spelling of 72504412 in words is "seventy-two million, five hundred four thousand, four hundred twelve".