22806280 has 64 divisors (see below), whose sum is σ = 59927040. Its totient is φ = 7648512.

The previous prime is 22806269. The next prime is 22806293. The reversal of 22806280 is 8260822.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12294 + ... + 14026.

It is an arithmetic number, because the mean of its divisors is an integer number (936360).

Almost surely, 2^22806280 is an apocalyptic number.

22806280 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 22806280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29963520).

22806280 is an abundant number, since it is smaller than the sum of its proper divisors (37120760).

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

22806280 is a wasteful number, since it uses less digits than its factorization.

22806280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798 (or 1794 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 22806280 is about 4775.5921098854. The cubic root of 22806280 is about 283.5860198686.

The spelling of 22806280 in words is "twenty-two million, eight hundred six thousand, two hundred eighty".