22042263 has 8 divisors (see below), whose sum is σ = 29828608. Its totient is φ = 14475384.

The previous prime is 22042249. The next prime is 22042301. The reversal of 22042263 is 36224022.

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

It is not a de Polignac number, because 22042263 - 2⁵ = 22042231 is a prime.

It is a super-2 number, since 2×22042263² = 971722716322338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22042213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54631 + ... + 55032.

It is an arithmetic number, because the mean of its divisors is an integer number (3728576).

Almost surely, 2^22042263 is an apocalyptic number.

22042263 is a deficient number, since it is larger than the sum of its proper divisors (7786345).

22042263 is a wasteful number, since it uses less digits than its factorization.

22042263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109733.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 22042263 is about 4694.9188491389. The cubic root of 22042263 is about 280.3832464554.

Adding to 22042263 its reverse (36224022), we get a palindrome (58266285).

The spelling of 22042263 in words is "twenty-two million, forty-two thousand, two hundred sixty-three".