22434442 has 4 divisors (see below), whose sum is σ = 33651666. Its totient is φ = 11217220.

The previous prime is 22434439. The next prime is 22434457. The reversal of 22434442 is 24443422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14600041 + 7834401 = 3821^2 + 2799^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5608609 + ... + 5608612.

Almost surely, 2^22434442 is an apocalyptic number.

22434442 is a deficient number, since it is larger than the sum of its proper divisors (11217224).

22434442 is a wasteful number, since it uses less digits than its factorization.

22434442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11217223.

The product of its digits is 6144, while the sum is 25.

The square root of 22434442 is about 4736.5010292409. The cubic root of 22434442 is about 282.0363533102.

Adding to 22434442 its reverse (24443422), we get a palindrome (46877864).

The spelling of 22434442 in words is "twenty-two million, four hundred thirty-four thousand, four hundred forty-two".