22042445 has 8 divisors (see below), whose sum is σ = 27066336. Its totient is φ = 17223696.

The previous prime is 22042429. The next prime is 22042469. The reversal of 22042445 is 54424022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22042445 - 2⁴ = 22042429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22042445.

It is a congruent number.

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, 51047 + ... + 51476.

It is an arithmetic number, because the mean of its divisors is an integer number (3383292).

Almost surely, 2^22042445 is an apocalyptic number.

It is an amenable number.

22042445 is a deficient number, since it is larger than the sum of its proper divisors (5023891).

22042445 is a wasteful number, since it uses less digits than its factorization.

22042445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102571.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 22042445 is about 4694.9382317556. The cubic root of 22042445 is about 280.3840181489.

Adding to 22042445 its reverse (54424022), we get a palindrome (76466467).

The spelling of 22042445 in words is "twenty-two million, forty-two thousand, four hundred forty-five".