22104630 has 32 divisors (see below), whose sum is σ = 58946400. Its totient is φ = 5894496.

The previous prime is 22104629. The next prime is 22104637. The reversal of 22104630 is 3640122.

It is a happy number.

22104630 is a `hidden beast` number, since 22 + 10 + 4 + 630 = 666.

It is a super-2 number, since 2×22104630² = 977229334873800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22104637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40665 + ... + 41204.

It is an arithmetic number, because the mean of its divisors is an integer number (1842075).

Almost surely, 2^22104630 is an apocalyptic number.

22104630 is an abundant number, since it is smaller than the sum of its proper divisors (36841770).

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

22104630 is a wasteful number, since it uses less digits than its factorization.

22104630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81885 (or 81879 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 22104630 is about 4701.5561253696. The cubic root of 22104630 is about 280.6474388600.

Adding to 22104630 its reverse (3640122), we get a palindrome (25744752).

The spelling of 22104630 in words is "twenty-two million, one hundred four thousand, six hundred thirty".