72436304 has 10 divisors (see below), whose sum is σ = 140345370. Its totient is φ = 36218144.

The previous prime is 72436289. The next prime is 72436307. The reversal of 72436304 is 40363427.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 71436304 + 1000000 = 8452^2 + 1000^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72436307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2263619 + ... + 2263650.

It is an arithmetic number, because the mean of its divisors is an integer number (14034537).

Almost surely, 2^72436304 is an apocalyptic number.

It is an amenable number.

72436304 is a deficient number, since it is larger than the sum of its proper divisors (67909066).

72436304 is a wasteful number, since it uses less digits than its factorization.

72436304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4527277 (or 4527271 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 72436304 is about 8510.9520031545. The cubic root of 72436304 is about 416.8553959599.

The spelling of 72436304 in words is "seventy-two million, four hundred thirty-six thousand, three hundred four".