72442375 has 8 divisors (see below), whose sum is σ = 90408240. Its totient is φ = 57953800.

The previous prime is 72442373. The next prime is 72442397. The reversal of 72442375 is 57324427.

It is not a de Polignac number, because 72442375 - 2¹ = 72442373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72442375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72442373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289645 + ... + 289894.

It is an arithmetic number, because the mean of its divisors is an integer number (11301030).

Almost surely, 2^72442375 is an apocalyptic number.

72442375 is a deficient number, since it is larger than the sum of its proper divisors (17965865).

72442375 is an equidigital number, since it uses as much as digits as its factorization.

72442375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579554 (or 579544 counting only the distinct ones).

The product of its digits is 47040, while the sum is 34.

The square root of 72442375 is about 8511.3086537853. The cubic root of 72442375 is about 416.8670414022.

The spelling of 72442375 in words is "seventy-two million, four hundred forty-two thousand, three hundred seventy-five".