22312630 has 16 divisors (see below), whose sum is σ = 40481280. Its totient is φ = 8854272.

The previous prime is 22312621. The next prime is 22312637. The reversal of 22312630 is 3621322.

It is a super-3 number, since 3×22312630³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22312598 and 22312607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22312637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7515 + ... + 10054.

It is an arithmetic number, because the mean of its divisors is an integer number (2530080).

Almost surely, 2^22312630 is an apocalyptic number.

22312630 is a deficient number, since it is larger than the sum of its proper divisors (18168650).

22312630 is a wasteful number, since it uses less digits than its factorization.

22312630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17703.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 22312630 is about 4723.6246675620. The cubic root of 22312630 is about 281.5249702586.

Adding to 22312630 its reverse (3621322), we get a palindrome (25933952).

The spelling of 22312630 in words is "twenty-two million, three hundred twelve thousand, six hundred thirty".