22318130 has 16 divisors (see below), whose sum is σ = 40380120. Its totient is φ = 8881152.

The previous prime is 22318117. The next prime is 22318151. The reversal of 22318130 is 3181322.

It can be written as a sum of positive squares in 4 ways, for example, as 21279769 + 1038361 = 4613^2 + 1019^2 .

It is a super-3 number, since 3×22318130³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3695 + ... + 7634.

Almost surely, 2^22318130 is an apocalyptic number.

22318130 is a deficient number, since it is larger than the sum of its proper divisors (18061990).

22318130 is a wasteful number, since it uses less digits than its factorization.

22318130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11533.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 22318130 is about 4724.2068117304. The cubic root of 22318130 is about 281.5481000604.

Adding to 22318130 its reverse (3181322), we get a palindrome (25499452).

It can be divided in two parts, 2 and 2318130, that added together give a palindrome (2318132).

The spelling of 22318130 in words is "twenty-two million, three hundred eighteen thousand, one hundred thirty".