22117630 has 16 divisors (see below), whose sum is σ = 40317120. Its totient is φ = 8734752.

The previous prime is 22117621. The next prime is 22117639. The reversal of 22117630 is 3671122.

It is an interprime number because it is at equal distance from previous prime (22117621) and next prime (22117639).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22117639) 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, 13209 + ... + 14788.

It is an arithmetic number, because the mean of its divisors is an integer number (2519820).

Almost surely, 2^22117630 is an apocalyptic number.

22117630 is a deficient number, since it is larger than the sum of its proper divisors (18199490).

22117630 is a wasteful number, since it uses less digits than its factorization.

22117630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28083.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 22117630 is about 4702.9384431438. The cubic root of 22117630 is about 280.7024454613.

Adding to 22117630 its reverse (3671122), we get a palindrome (25788752).

The spelling of 22117630 in words is "twenty-two million, one hundred seventeen thousand, six hundred thirty".