22642841 has 4 divisors (see below), whose sum is σ = 24384612. Its totient is φ = 20901072.

The previous prime is 22642831. The next prime is 22642871. The reversal of 22642841 is 14824622.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11055625 + 11587216 = 3325^2 + 3404^2 .

It is a cyclic number.

It is not a de Polignac number, because 22642841 - 2²² = 18448537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22642831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 870866 + ... + 870891.

It is an arithmetic number, because the mean of its divisors is an integer number (6096153).

Almost surely, 2^22642841 is an apocalyptic number.

It is an amenable number.

22642841 is a deficient number, since it is larger than the sum of its proper divisors (1741771).

22642841 is a wasteful number, since it uses less digits than its factorization.

22642841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741770.

The product of its digits is 6144, while the sum is 29.

The square root of 22642841 is about 4758.4494323256. The cubic root of 22642841 is about 282.9069645528.

The spelling of 22642841 in words is "twenty-two million, six hundred forty-two thousand, eight hundred forty-one".