72230330 has 8 divisors (see below), whose sum is σ = 130014612. Its totient is φ = 28892128.

The previous prime is 72230317. The next prime is 72230357. The reversal of 72230330 is 3303227.

It can be written as a sum of positive squares in 2 ways, for example, as 64272289 + 7958041 = 8017^2 + 2821^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 3611507 + ... + 3611526.

Almost surely, 2^72230330 is an apocalyptic number.

72230330 is a deficient number, since it is larger than the sum of its proper divisors (57784282).

72230330 is a wasteful number, since it uses less digits than its factorization.

72230330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7223040.

The product of its (nonzero) digits is 756, while the sum is 20.

The square root of 72230330 is about 8498.8428624137. The cubic root of 72230330 is about 416.4599087976.

Adding to 72230330 its reverse (3303227), we get a palindrome (75533557).

The spelling of 72230330 in words is "seventy-two million, two hundred thirty thousand, three hundred thirty".