22025424 has 20 divisors (see below), whose sum is σ = 56899136. Its totient is φ = 7341792.

The previous prime is 22025383. The next prime is 22025429. The reversal of 22025424 is 42452022.

It is a self number, because there is not a number n which added to its sum of digits gives 22025424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22025429) 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, 229384 + ... + 229479.

Almost surely, 2^22025424 is an apocalyptic number.

22025424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22025424 is an abundant number, since it is smaller than the sum of its proper divisors (34873712).

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

22025424 is a wasteful number, since it uses less digits than its factorization.

22025424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458874 (or 458868 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 22025424 is about 4693.1251847783. The cubic root of 22025424 is about 280.3118294646.

Adding to 22025424 its reverse (42452022), we get a palindrome (64477446).

It can be divided in two parts, 2202 and 5424, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 22025424 in words is "twenty-two million, twenty-five thousand, four hundred twenty-four".