22055242 has 8 divisors (see below), whose sum is σ = 36090432. Its totient is φ = 10025100.

The previous prime is 22055233. The next prime is 22055249. The reversal of 22055242 is 24255022.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 1002511 = 22055242 / (2 + 2 + 0 + 5 + 5 + 2 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (22055249) 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, 501234 + ... + 501277.

It is an arithmetic number, because the mean of its divisors is an integer number (4511304).

Almost surely, 2^22055242 is an apocalyptic number.

22055242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22055242 is a deficient number, since it is larger than the sum of its proper divisors (14035190).

22055242 is a wasteful number, since it uses less digits than its factorization.

22055242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002524.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 22055242 is about 4696.3008847390. The cubic root of 22055242 is about 280.4382677287.

It can be divided in two parts, 2205 and 5242, that added together give a palindrome (7447).

The spelling of 22055242 in words is "twenty-two million, fifty-five thousand, two hundred forty-two".