72254339 has 4 divisors (see below), whose sum is σ = 75395856. Its totient is φ = 69112824.

The previous prime is 72254333. The next prime is 72254363. The reversal of 72254339 is 93345227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93345227 = 257 ⋅363211.

It is a cyclic number.

It is not a de Polignac number, because 72254339 - 2²⁰ = 71205763 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72254299 and 72254308.

It is not an unprimeable number, because it can be changed into a prime (72254333) 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 3 ways as a sum of consecutive naturals, for example, 1570724 + ... + 1570769.

It is an arithmetic number, because the mean of its divisors is an integer number (18848964).

Almost surely, 2^72254339 is an apocalyptic number.

72254339 is a deficient number, since it is larger than the sum of its proper divisors (3141517).

72254339 is a wasteful number, since it uses less digits than its factorization.

72254339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141516.

The product of its digits is 45360, while the sum is 35.

The square root of 72254339 is about 8500.2552314622. The cubic root of 72254339 is about 416.5060467487.

The spelling of 72254339 in words is "seventy-two million, two hundred fifty-four thousand, three hundred thirty-nine".