22431130 has 16 divisors (see below), whose sum is σ = 40686624. Its totient is φ = 8903440.

The previous prime is 22431127. The next prime is 22431133. The reversal of 22431130 is 3113422.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22431127) and next prime (22431133).

It is not an unprimeable number, because it can be changed into a prime (22431133) 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, 7252 + ... + 9871.

It is an arithmetic number, because the mean of its divisors is an integer number (2542914).

Almost surely, 2^22431130 is an apocalyptic number.

22431130 is a deficient number, since it is larger than the sum of its proper divisors (18255494).

22431130 is a wasteful number, since it uses less digits than its factorization.

22431130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17261.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 22431130 is about 4736.1513911614. The cubic root of 22431130 is about 282.0224736042.

Adding to 22431130 its reverse (3113422), we get a palindrome (25544552).

The spelling of 22431130 in words is "twenty-two million, four hundred thirty-one thousand, one hundred thirty".