22424292 has 72 divisors (see below), whose sum is σ = 65493792. Its totient is φ = 6393600.

The previous prime is 22424291. The next prime is 22424299. The reversal of 22424292 is 29242422.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (22424291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5067 + ... + 8397.

It is an arithmetic number, because the mean of its divisors is an integer number (909636).

Almost surely, 2^22424292 is an apocalyptic number.

22424292 is a gapful number since it is divisible by the number (22) 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 22424292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32746896).

22424292 is an abundant number, since it is smaller than the sum of its proper divisors (43069500).

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

22424292 is a wasteful number, since it uses less digits than its factorization.

22424292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369 (or 3364 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 22424292 is about 4735.4294419831. The cubic root of 22424292 is about 281.9938130527.

The spelling of 22424292 in words is "twenty-two million, four hundred twenty-four thousand, two hundred ninety-two".