72254439 has 12 divisors (see below), whose sum is σ = 106079272. Its totient is φ = 47379600.

The previous prime is 72254419. The next prime is 72254447. The reversal of 72254439 is 93445227.

It is not a de Polignac number, because 72254439 - 2⁷ = 72254311 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 (72254419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65257 + ... + 66354.

Almost surely, 2^72254439 is an apocalyptic number.

72254439 is a deficient number, since it is larger than the sum of its proper divisors (33824833).

72254439 is a wasteful number, since it uses less digits than its factorization.

72254439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131678 (or 131675 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 72254439 is about 8500.2611136365. The cubic root of 72254439 is about 416.5062388967.

It can be divided in two parts, 7225 and 4439, that added together give a square (11664 = 108²).

The spelling of 72254439 in words is "seventy-two million, two hundred fifty-four thousand, four hundred thirty-nine".