22042434 has 16 divisors (see below), whose sum is σ = 44308800. Its totient is φ = 7310160.

The previous prime is 22042429. The next prime is 22042469. The reversal of 22042434 is 43424022.

It is a self number, because there is not a number n which added to its sum of digits gives 22042434.

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, 8037 + ... + 10424.

It is an arithmetic number, because the mean of its divisors is an integer number (2769300).

Almost surely, 2^22042434 is an apocalyptic number.

22042434 is an abundant number, since it is smaller than the sum of its proper divisors (22266366).

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

22042434 is a wasteful number, since it uses less digits than its factorization.

22042434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18665.

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

The square root of 22042434 is about 4694.9370602810. The cubic root of 22042434 is about 280.3839715082.

Adding to 22042434 its reverse (43424022), we get a palindrome (65466456).

The spelling of 22042434 in words is "twenty-two million, forty-two thousand, four hundred thirty-four".