22025620 has 24 divisors (see below), whose sum is σ = 46908288. Its totient is φ = 8685600.

The previous prime is 22025611. The next prime is 22025639. The reversal of 22025620 is 2652022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6336 + ... + 9175.

It is an arithmetic number, because the mean of its divisors is an integer number (1954512).

Almost surely, 2^22025620 is an apocalyptic number.

22025620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22025620 is an abundant number, since it is smaller than the sum of its proper divisors (24882668).

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

22025620 is a wasteful number, since it uses less digits than its factorization.

22025620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15591 (or 15589 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 22025620 is about 4693.1460663397. The cubic root of 22025620 is about 280.3126609425.

Adding to 22025620 its reverse (2652022), we get a palindrome (24677642).

The spelling of 22025620 in words is "twenty-two million, twenty-five thousand, six hundred twenty".