22423242 has 16 divisors (see below), whose sum is σ = 44953920. Its totient is φ = 7456512.

The previous prime is 22423231. The next prime is 22423259. The reversal of 22423242 is 24232422.

It is a super-3 number, since 3×22423242³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1623 + ... + 6890.

It is an arithmetic number, because the mean of its divisors is an integer number (2809620).

Almost surely, 2^22423242 is an apocalyptic number.

22423242 is an abundant number, since it is smaller than the sum of its proper divisors (22530678).

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

22423242 is a wasteful number, since it uses less digits than its factorization.

22423242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8957.

The product of its digits is 1536, while the sum is 21.

The square root of 22423242 is about 4735.3185742883. The cubic root of 22423242 is about 281.9894116038.

Adding to 22423242 its reverse (24232422), we get a palindrome (46655664).

It can be divided in two parts, 2 and 2423242, that multiplied together give a palindrome (4846484).

The spelling of 22423242 in words is "twenty-two million, four hundred twenty-three thousand, two hundred forty-two".