72446375 has 8 divisors (see below), whose sum is σ = 90413232. Its totient is φ = 57957000.

The previous prime is 72446351. The next prime is 72446377. The reversal of 72446375 is 57364427.

It is not a de Polignac number, because 72446375 - 2⁸ = 72446119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72446377) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 289661 + ... + 289910.

It is an arithmetic number, because the mean of its divisors is an integer number (11301654).

Almost surely, 2^72446375 is an apocalyptic number.

72446375 is a deficient number, since it is larger than the sum of its proper divisors (17966857).

72446375 is an equidigital number, since it uses as much as digits as its factorization.

72446375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579586 (or 579576 counting only the distinct ones).

The product of its digits is 141120, while the sum is 38.

The square root of 72446375 is about 8511.5436320329. The cubic root of 72446375 is about 416.8747138797.

The spelling of 72446375 in words is "seventy-two million, four hundred forty-six thousand, three hundred seventy-five".