72266243 has 8 divisors (see below), whose sum is σ = 82712160. Its totient is φ = 61850880.

The previous prime is 72266221. The next prime is 72266263. The reversal of 72266243 is 34266227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72266243 - 2⁶ = 72266179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72266263) 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 7 ways as a sum of consecutive naturals, for example, 2318 + ... + 12243.

It is an arithmetic number, because the mean of its divisors is an integer number (10339020).

Almost surely, 2^72266243 is an apocalyptic number.

72266243 is a deficient number, since it is larger than the sum of its proper divisors (10445917).

72266243 is a wasteful number, since it uses less digits than its factorization.

72266243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15277.

The product of its digits is 24192, while the sum is 32.

The square root of 72266243 is about 8500.9554168929. The cubic root of 72266243 is about 416.5289188041.

The spelling of 72266243 in words is "seventy-two million, two hundred sixty-six thousand, two hundred forty-three".