72250322 has 8 divisors (see below), whose sum is σ = 108937596. Its totient is φ = 35937792.

The previous prime is 72250309. The next prime is 72250361. The reversal of 72250322 is 22305227.

It can be written as a sum of positive squares in 2 ways, for example, as 71081761 + 1168561 = 8431^2 + 1081^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93203 + ... + 93974.

Almost surely, 2^72250322 is an apocalyptic number.

72250322 is a deficient number, since it is larger than the sum of its proper divisors (36687274).

72250322 is a wasteful number, since it uses less digits than its factorization.

72250322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187372.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 72250322 is about 8500.0189411554. The cubic root of 72250322 is about 416.4983280160.

Adding to 72250322 its reverse (22305227), we get a palindrome (94555549).

The spelling of 72250322 in words is "seventy-two million, two hundred fifty thousand, three hundred twenty-two".