22134042 has 48 divisors (see below), whose sum is σ = 55403712. Its totient is φ = 6255360.

The previous prime is 22134041. The next prime is 22134043. The reversal of 22134042 is 24043122.

It is an interprime number because it is at equal distance from previous prime (22134041) and next prime (22134043).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22134041) 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 23 ways as a sum of consecutive naturals, for example, 11317 + ... + 13127.

It is an arithmetic number, because the mean of its divisors is an integer number (1154244).

Almost surely, 2^22134042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22134042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27701856).

22134042 is an abundant number, since it is smaller than the sum of its proper divisors (33269670).

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

22134042 is a wasteful number, since it uses less digits than its factorization.

22134042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923 (or 1920 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 22134042 is about 4704.6829861320. The cubic root of 22134042 is about 280.7718584065.

Adding to 22134042 its reverse (24043122), we get a palindrome (46177164).

The spelling of 22134042 in words is "twenty-two million, one hundred thirty-four thousand, forty-two".