22422972 has 96 divisors (see below), whose sum is σ = 62657280. Its totient is φ = 6151680.

The previous prime is 22422971. The next prime is 22423001. The reversal of 22422972 is 27922422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22422971) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 125179 + ... + 125357.

It is an arithmetic number, because the mean of its divisors is an integer number (652680).

Almost surely, 2^22422972 is an apocalyptic number.

22422972 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 22422972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31328640).

22422972 is an abundant number, since it is smaller than the sum of its proper divisors (40234308).

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

22422972 is a wasteful number, since it uses less digits than its factorization.

22422972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 281 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 22422972 is about 4735.2900650330. The cubic root of 22422972 is about 281.9882797805.

The spelling of 22422972 in words is "twenty-two million, four hundred twenty-two thousand, nine hundred seventy-two".