22229418 has 16 divisors (see below), whose sum is σ = 45893376. Its totient is φ = 7170720.

The previous prime is 22229413. The next prime is 22229423. The reversal of 22229418 is 81492222.

It is an interprime number because it is at equal distance from previous prime (22229413) and next prime (22229423).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22229413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59571 + ... + 59942.

It is an arithmetic number, because the mean of its divisors is an integer number (2868336).

Almost surely, 2^22229418 is an apocalyptic number.

22229418 is an abundant number, since it is smaller than the sum of its proper divisors (23663958).

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

22229418 is a wasteful number, since it uses less digits than its factorization.

22229418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119549.

The product of its digits is 4608, while the sum is 30.

The square root of 22229418 is about 4714.8083736245. The cubic root of 22229418 is about 281.1745642626.

The spelling of 22229418 in words is "twenty-two million, two hundred twenty-nine thousand, four hundred eighteen".