22424442 has 32 divisors (see below), whose sum is σ = 46654272. Its totient is φ = 7179264.

The previous prime is 22424429. The next prime is 22424489. The reversal of 22424442 is 24442422.

It is a super-2 number, since 2×22424442² = 1005711198022728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17818 + ... + 19034.

It is an arithmetic number, because the mean of its divisors is an integer number (1457946).

Almost surely, 2^22424442 is an apocalyptic number.

22424442 is an abundant number, since it is smaller than the sum of its proper divisors (24229830).

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

22424442 is a wasteful number, since it uses less digits than its factorization.

22424442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342.

The product of its digits is 4096, while the sum is 24.

The square root of 22424442 is about 4735.4452800133. The cubic root of 22424442 is about 281.9944418199.

Adding to 22424442 its reverse (24442422), we get a palindrome (46866864).

The spelling of 22424442 in words is "twenty-two million, four hundred twenty-four thousand, four hundred forty-two".