72243322 has 16 divisors (see below), whose sum is σ = 113545152. Its totient is φ = 34408000.

The previous prime is 72243307. The next prime is 72243323. The reversal of 72243322 is 22334227.

It is not an unprimeable number, because it can be changed into a prime (72243323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8418 + ... + 14674.

It is an arithmetic number, because the mean of its divisors is an integer number (7096572).

Almost surely, 2^72243322 is an apocalyptic number.

72243322 is a deficient number, since it is larger than the sum of its proper divisors (41301830).

72243322 is a wasteful number, since it uses less digits than its factorization.

72243322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6533.

The product of its digits is 4032, while the sum is 25.

The square root of 72243322 is about 8499.6071673931. The cubic root of 72243322 is about 416.4848767151.

Adding to 72243322 its reverse (22334227), we get a palindrome (94577549).

It can be divided in two parts, 722 and 43322, that added together give a palindrome (44044).

The spelling of 72243322 in words is "seventy-two million, two hundred forty-three thousand, three hundred twenty-two".