72385322 has 4 divisors (see below), whose sum is σ = 108577986. Its totient is φ = 36192660.

The previous prime is 72385309. The next prime is 72385331. The reversal of 72385322 is 22358327.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 67584841 + 4800481 = 8221^2 + 2191^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18096329 + ... + 18096332.

Almost surely, 2^72385322 is an apocalyptic number.

72385322 is a deficient number, since it is larger than the sum of its proper divisors (36192664).

72385322 is a wasteful number, since it uses less digits than its factorization.

72385322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36192663.

The product of its digits is 20160, while the sum is 32.

The square root of 72385322 is about 8507.9563938704. The cubic root of 72385322 is about 416.7575761814.

The spelling of 72385322 in words is "seventy-two million, three hundred eighty-five thousand, three hundred twenty-two".