72295144 has 32 divisors (see below), whose sum is σ = 142351200. Its totient is φ = 34372800.

The previous prime is 72295129. The next prime is 72295159. The reversal of 72295144 is 44159227.

It is an interprime number because it is at equal distance from previous prime (72295129) and next prime (72295159).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13219 + ... + 17869.

It is an arithmetic number, because the mean of its divisors is an integer number (4448475).

Almost surely, 2^72295144 is an apocalyptic number.

It is an amenable number.

72295144 is a deficient number, since it is larger than the sum of its proper divisors (70056056).

72295144 is a wasteful number, since it uses less digits than its factorization.

72295144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4753 (or 4749 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 72295144 is about 8502.6551147274. The cubic root of 72295144 is about 416.5844380311.

The spelling of 72295144 in words is "seventy-two million, two hundred ninety-five thousand, one hundred forty-four".