22633140 has 24 divisors (see below), whose sum is σ = 63372960. Its totient is φ = 6035488.

The previous prime is 22633111. The next prime is 22633141. The reversal of 22633140 is 4133622.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22633141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188550 + ... + 188669.

It is an arithmetic number, because the mean of its divisors is an integer number (2640540).

Almost surely, 2^22633140 is an apocalyptic number.

22633140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22633140 is an abundant number, since it is smaller than the sum of its proper divisors (40739820).

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

22633140 is a wasteful number, since it uses less digits than its factorization.

22633140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377231 (or 377229 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 22633140 is about 4757.4299784653. The cubic root of 22633140 is about 282.8665563063.

Adding to 22633140 its reverse (4133622), we get a palindrome (26766762).

The spelling of 22633140 in words is "twenty-two million, six hundred thirty-three thousand, one hundred forty".