22222838 has 8 divisors (see below), whose sum is σ = 36364680. Its totient is φ = 10101280.

The previous prime is 22222831. The next prime is 22222891. The reversal of 22222838 is 83822222.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22222838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222831) 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, 505043 + ... + 505086.

It is an arithmetic number, because the mean of its divisors is an integer number (4545585).

Almost surely, 2^22222838 is an apocalyptic number.

22222838 is a deficient number, since it is larger than the sum of its proper divisors (14141842).

22222838 is a wasteful number, since it uses less digits than its factorization.

22222838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010142.

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

The square root of 22222838 is about 4714.1105205542. The cubic root of 22222838 is about 281.1468185787.

It can be divided in two parts, 2222 and 2838, that multiplied together give a palindrome (6306036).

The spelling of 22222838 in words is "twenty-two million, two hundred twenty-two thousand, eight hundred thirty-eight".