22105842 has 32 divisors (see below), whose sum is σ = 48432384. Its totient is φ = 6670800.

The previous prime is 22105841. The next prime is 22105843. The reversal of 22105842 is 24850122.

It is an interprime number because it is at equal distance from previous prime (22105841) and next prime (22105843).

It is not an unprimeable number, because it can be changed into a prime (22105841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19717 + ... + 20807.

It is an arithmetic number, because the mean of its divisors is an integer number (1513512).

Almost surely, 2^22105842 is an apocalyptic number.

22105842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22105842 is an abundant number, since it is smaller than the sum of its proper divisors (26326542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22105842 is a wasteful number, since it uses less digits than its factorization.

22105842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 22105842 is about 4701.6850170976. The cubic root of 22105842 is about 280.6525680792.

Adding to 22105842 its reverse (24850122), we get a palindrome (46955964).

The spelling of 22105842 in words is "twenty-two million, one hundred five thousand, eight hundred forty-two".