22424238 has 12 divisors (see below), whose sum is σ = 48585888. Its totient is φ = 7474740.

The previous prime is 22424231. The next prime is 22424239. The reversal of 22424238 is 83242422.

22424238 is a `hidden beast` number, since 2 + 2 + 424 + 238 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22424231) 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 5 ways as a sum of consecutive naturals, for example, 622878 + ... + 622913.

It is an arithmetic number, because the mean of its divisors is an integer number (4048824).

Almost surely, 2^22424238 is an apocalyptic number.

22424238 is an abundant number, since it is smaller than the sum of its proper divisors (26161650).

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

22424238 is a wasteful number, since it uses less digits than its factorization.

22424238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245799 (or 1245796 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 22424238 is about 4735.4237402792. The cubic root of 22424238 is about 281.9935866959.

The spelling of 22424238 in words is "twenty-two million, four hundred twenty-four thousand, two hundred thirty-eight".