22412140 has 12 divisors (see below), whose sum is σ = 47065536. Its totient is φ = 8964848.

The previous prime is 22412129. The next prime is 22412147. The reversal of 22412140 is 4121422.

It is not an unprimeable number, because it can be changed into a prime (22412147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560284 + ... + 560323.

It is an arithmetic number, because the mean of its divisors is an integer number (3922128).

Almost surely, 2^22412140 is an apocalyptic number.

22412140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22412140 is an abundant number, since it is smaller than the sum of its proper divisors (24653396).

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

22412140 is a wasteful number, since it uses less digits than its factorization.

22412140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120616 (or 1120614 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 22412140 is about 4734.1461743381. The cubic root of 22412140 is about 281.9428652085.

Adding to 22412140 its reverse (4121422), we get a palindrome (26533562).

It can be divided in two parts, 2 and 2412140, that added together give a palindrome (2412142).

The spelling of 22412140 in words is "twenty-two million, four hundred twelve thousand, one hundred forty".