72243375 has 32 divisors (see below), whose sum is σ = 120766464. Its totient is φ = 38352800.

The previous prime is 72243343. The next prime is 72243389. The reversal of 72243375 is 57334227.

It is not a de Polignac number, because 72243375 - 2⁵ = 72243343 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143374 + ... + 143876.

It is an arithmetic number, because the mean of its divisors is an integer number (3773952).

Almost surely, 2^72243375 is an apocalyptic number.

72243375 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

72243375 is a deficient number, since it is larger than the sum of its proper divisors (48523089).

72243375 is a wasteful number, since it uses less digits than its factorization.

72243375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 894 counting only the distinct ones).

The product of its digits is 35280, while the sum is 33.

The square root of 72243375 is about 8499.6102851837. The cubic root of 72243375 is about 416.4849785639.

The spelling of 72243375 in words is "seventy-two million, two hundred forty-three thousand, three hundred seventy-five".