22102424 has 8 divisors (see below), whose sum is σ = 41442060. Its totient is φ = 11051208.

The previous prime is 22102417. The next prime is 22102427. The reversal of 22102424 is 42420122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1381394 + ... + 1381409.

Almost surely, 2^22102424 is an apocalyptic number.

It is an amenable number.

22102424 is a deficient number, since it is larger than the sum of its proper divisors (19339636).

22102424 is a wasteful number, since it uses less digits than its factorization.

22102424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762809 (or 2762805 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 22102424 is about 4701.3215163398. The cubic root of 22102424 is about 280.6381025226.

Adding to 22102424 its reverse (42420122), we get a palindrome (64522546).

The spelling of 22102424 in words is "twenty-two million, one hundred two thousand, four hundred twenty-four".