72294299 has 16 divisors (see below), whose sum is σ = 90320640. Its totient is φ = 56216160.

The previous prime is 72294289. The next prime is 72294311. The reversal of 72294299 is 99249227.

It is a happy number.

It is not a de Polignac number, because 72294299 - 2⁸ = 72294043 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72294269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65597 + ... + 66689.

It is an arithmetic number, because the mean of its divisors is an integer number (5645040).

Almost surely, 2^72294299 is an apocalyptic number.

72294299 is a deficient number, since it is larger than the sum of its proper divisors (18026341).

72294299 is a wasteful number, since it uses less digits than its factorization.

72294299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970.

The product of its digits is 163296, while the sum is 44.

The square root of 72294299 is about 8502.6054242214. The cubic root of 72294299 is about 416.5828149843.

The spelling of 72294299 in words is "seventy-two million, two hundred ninety-four thousand, two hundred ninety-nine".