22229860 has 12 divisors (see below), whose sum is σ = 46682748. Its totient is φ = 8891936.

The previous prime is 22229849. The next prime is 22229873. The reversal of 22229860 is 6892222.

It can be written as a sum of positive squares in 2 ways, for example, as 4990756 + 17239104 = 2234^2 + 4152^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555727 + ... + 555766.

It is an arithmetic number, because the mean of its divisors is an integer number (3890229).

Almost surely, 2^22229860 is an apocalyptic number.

22229860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22229860 is an abundant number, since it is smaller than the sum of its proper divisors (24452888).

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

22229860 is a wasteful number, since it uses less digits than its factorization.

22229860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111502 (or 1111500 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 22229860 is about 4714.8552469827. The cubic root of 22229860 is about 281.1764278341.

The spelling of 22229860 in words is "twenty-two million, two hundred twenty-nine thousand, eight hundred sixty".