22906020 has 96 divisors (see below), whose sum is σ = 68705280. Its totient is φ = 5685120.

The previous prime is 22906007. The next prime is 22906033. The reversal of 22906020 is 2060922.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22906007) and next prime (22906033).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80799 + ... + 81081.

It is an arithmetic number, because the mean of its divisors is an integer number (715680).

Almost surely, 2^22906020 is an apocalyptic number.

22906020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22906020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34352640).

22906020 is an abundant number, since it is smaller than the sum of its proper divisors (45799260).

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

22906020 is a wasteful number, since it uses less digits than its factorization.

22906020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 22906020 is about 4786.0234015308. The cubic root of 22906020 is about 283.9988262862.

Adding to 22906020 its reverse (2060922), we get a palindrome (24966942).

The spelling of 22906020 in words is "twenty-two million, nine hundred six thousand, twenty".