22402424 has 24 divisors (see below), whose sum is σ = 46172280. Its totient is φ = 10182480.

The previous prime is 22402423. The next prime is 22402453. The reversal of 22402424 is 42420422.

22402424 is a modest number, since divided by 2424 gives 2240 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 22402396 and 22402405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22402421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10604 + ... + 12539.

It is an arithmetic number, because the mean of its divisors is an integer number (1923845).

Almost surely, 2^22402424 is an apocalyptic number.

It is an amenable number.

22402424 is an abundant number, since it is smaller than the sum of its proper divisors (23769856).

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

22402424 is a wasteful number, since it uses less digits than its factorization.

22402424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23171 (or 23156 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 22402424 is about 4733.1199012913. The cubic root of 22402424 is about 281.9021171611.

Adding to 22402424 its reverse (42420422), we get a palindrome (64822846).

It can be divided in two parts, 2240 and 2424, that added together give a palindrome (4664).

The spelling of 22402424 in words is "twenty-two million, four hundred two thousand, four hundred twenty-four".