22229880 has 96 divisors (see below), whose sum is σ = 70953840. Its totient is φ = 5570560.

The previous prime is 22229873. The next prime is 22229903. The reversal of 22229880 is 8892222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34360 + ... + 35000.

Almost surely, 2^22229880 is an apocalyptic number.

22229880 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 22229880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35476920).

22229880 is an abundant number, since it is smaller than the sum of its proper divisors (48723960).

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

22229880 is a wasteful number, since it uses less digits than its factorization.

22229880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 22229880 is about 4714.8573679381. The cubic root of 22229880 is about 281.1765121581.

The spelling of 22229880 in words is "twenty-two million, two hundred twenty-nine thousand, eight hundred eighty".