22102442 has 16 divisors (see below), whose sum is σ = 34712064. Its totient is φ = 10542000.

The previous prime is 22102441. The next prime is 22102463. The reversal of 22102442 is 24420122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22102442.

It is not an unprimeable number, because it can be changed into a prime (22102441) 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, 1892 + ... + 6912.

It is an arithmetic number, because the mean of its divisors is an integer number (2169504).

Almost surely, 2^22102442 is an apocalyptic number.

22102442 is a deficient number, since it is larger than the sum of its proper divisors (12609622).

22102442 is a wasteful number, since it uses less digits than its factorization.

22102442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5125.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 22102442 is about 4701.3234306948. The cubic root of 22102442 is about 280.6381787056.

Adding to 22102442 its reverse (24420122), we get a palindrome (46522564).

The spelling of 22102442 in words is "twenty-two million, one hundred two thousand, four hundred forty-two".