72043322 has 16 divisors (see below), whose sum is σ = 116758152. Its totient is φ = 33142080.

The previous prime is 72043313. The next prime is 72043333. The reversal of 72043322 is 22334027.

It can be written as a sum of positive squares in 4 ways, for example, as 18913801 + 53129521 = 4349^2 + 7289^2 .

It is an unprimeable number.

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, 3872 + ... + 12612.

Almost surely, 2^72043322 is an apocalyptic number.

72043322 is a deficient number, since it is larger than the sum of its proper divisors (44714830).

72043322 is a wasteful number, since it uses less digits than its factorization.

72043322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9073.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 72043322 is about 8487.8337636879. The cubic root of 72043322 is about 416.1001862065.

Adding to 72043322 its reverse (22334027), we get a palindrome (94377349).

The spelling of 72043322 in words is "seventy-two million, forty-three thousand, three hundred twenty-two".