30223312 has 20 divisors (see below), whose sum is σ = 66923296. Its totient is φ = 12952800.

The previous prime is 30223289. The next prime is 30223313. The reversal of 30223312 is 21332203.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30223313) 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 3 ways as a sum of consecutive naturals, for example, 134814 + ... + 135037.

Almost surely, 2^30223312 is an apocalyptic number.

It is an amenable number.

30223312 is an abundant number, since it is smaller than the sum of its proper divisors (36699984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30223312 is a wasteful number, since it uses less digits than its factorization.

30223312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269866 (or 269860 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 30223312 is about 5497.5732828222. The cubic root of 30223312 is about 311.4923258160.

Adding to 30223312 its reverse (21332203), we get a palindrome (51555515).

The spelling of 30223312 in words is "thirty million, two hundred twenty-three thousand, three hundred twelve".