22429000 has 64 divisors (see below), whose sum is σ = 57283200. Its totient is φ = 8152000.

The previous prime is 22428997. The next prime is 22429003. The reversal of 22429000 is 92422.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22428997) and next prime (22429003).

It is not an unprimeable number, because it can be changed into a prime (22429003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9981 + ... + 12019.

It is an arithmetic number, because the mean of its divisors is an integer number (895050).

Almost surely, 2^22429000 is an apocalyptic number.

22429000 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 22429000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28641600).

22429000 is an abundant number, since it is smaller than the sum of its proper divisors (34854200).

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

22429000 is a wasteful number, since it uses less digits than its factorization.

22429000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071 (or 2057 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 22429000 is about 4735.9265197002. The cubic root of 22429000 is about 282.0135466222.

The spelling of 22429000 in words is "twenty-two million, four hundred twenty-nine thousand".