72436275 has 30 divisors (see below), whose sum is σ = 134180772. Its totient is φ = 38631600.

The previous prime is 72436271. The next prime is 72436283. The reversal of 72436275 is 57263427.

It is a happy number.

72436275 is a `hidden beast` number, since 7 + 24 + 3 + 627 + 5 = 666.

It is not a de Polignac number, because 72436275 - 2² = 72436271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72436271) by changing a digit.

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 29 ways as a sum of consecutive naturals, for example, 15861 + ... + 19910.

Almost surely, 2^72436275 is an apocalyptic number.

72436275 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

72436275 is a deficient number, since it is larger than the sum of its proper divisors (61744497).

72436275 is a wasteful number, since it uses less digits than its factorization.

72436275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35793 (or 35779 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 72436275 is about 8510.9502994672. The cubic root of 72436275 is about 416.8553403303.

The spelling of 72436275 in words is "seventy-two million, four hundred thirty-six thousand, two hundred seventy-five".