72595044 has 18 divisors (see below), whose sum is σ = 183504230. Its totient is φ = 24198336.

The previous prime is 72595031. The next prime is 72595079. The reversal of 72595044 is 44059527.

It can be written as a sum of positive squares in only one way, i.e., 45158400 + 27436644 = 6720^2 + 5238^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2016529 = 72595044 / (7 + 2 + 5 + 9 + 5 + 0 + 4 + 4).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1008229 + ... + 1008300.

Almost surely, 2^72595044 is an apocalyptic number.

It is an amenable number.

72595044 is an abundant number, since it is smaller than the sum of its proper divisors (110909186).

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

72595044 is a wasteful number, since it uses less digits than its factorization.

72595044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016539 (or 2016534 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 72595044 is about 8520.2725308525. The cubic root of 72595044 is about 417.1596786817.

The spelling of 72595044 in words is "seventy-two million, five hundred ninety-five thousand, forty-four".