22312030 has 32 divisors (see below), whose sum is σ = 43999200. Its totient is φ = 8095872.

The previous prime is 22312019. The next prime is 22312063. The reversal of 22312030 is 3021322.

It is a happy number.

It is a super-3 number, since 3×22312030³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 22312030.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 6216 + ... + 9124.

It is an arithmetic number, because the mean of its divisors is an integer number (1374975).

Almost surely, 2^22312030 is an apocalyptic number.

22312030 is a deficient number, since it is larger than the sum of its proper divisors (21687170).

22312030 is a wasteful number, since it uses less digits than its factorization.

22312030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 22312030 is about 4723.5611565851. The cubic root of 22312030 is about 281.5224467776.

Adding to 22312030 its reverse (3021322), we get a palindrome (25333352).

The spelling of 22312030 in words is "twenty-two million, three hundred twelve thousand, thirty".