22844642 has 4 divisors (see below), whose sum is σ = 34266966. Its totient is φ = 11422320.

The previous prime is 22844641. The next prime is 22844659. The reversal of 22844642 is 24644822.

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., 17732521 + 5112121 = 4211^2 + 2261^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22844599 and 22844608.

It is not an unprimeable number, because it can be changed into a prime (22844641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5711159 + ... + 5711162.

Almost surely, 2^22844642 is an apocalyptic number.

22844642 is a deficient number, since it is larger than the sum of its proper divisors (11422324).

22844642 is a wasteful number, since it uses less digits than its factorization.

22844642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11422323.

The product of its digits is 24576, while the sum is 32.

The square root of 22844642 is about 4779.6068876007. The cubic root of 22844642 is about 283.7449356416.

The spelling of 22844642 in words is "twenty-two million, eight hundred forty-four thousand, six hundred forty-two".