72238338 has 32 divisors (see below), whose sum is σ = 169974720. Its totient is φ = 22662720.

The previous prime is 72238337. The next prime is 72238343. The reversal of 72238338 is 83383227.

It is not an unprimeable number, because it can be changed into a prime (72238337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38428 + ... + 40263.

It is an arithmetic number, because the mean of its divisors is an integer number (5311710).

Almost surely, 2^72238338 is an apocalyptic number.

72238338 is an abundant number, since it is smaller than the sum of its proper divisors (97736382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72238338 is a wasteful number, since it uses less digits than its factorization.

72238338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78719 (or 78713 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 72238338 is about 8499.3139723156. The cubic root of 72238338 is about 416.4752988593.

It can be divided in two parts, 722 and 38338, that added together give a triangular number (39060 = T₂₇₉).

The spelling of 72238338 in words is "seventy-two million, two hundred thirty-eight thousand, three hundred thirty-eight".