42234522 has 32 divisors (see below), whose sum is σ = 93533184. Its totient is φ = 12606000.

The previous prime is 42234503. The next prime is 42234539. The reversal of 42234522 is 22543224.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42234492 and 42234501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354 + ... + 9197.

It is an arithmetic number, because the mean of its divisors is an integer number (2922912).

Almost surely, 2^42234522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42234522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46766592).

42234522 is an abundant number, since it is smaller than the sum of its proper divisors (51298662).

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

42234522 is a wasteful number, since it uses less digits than its factorization.

42234522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9634.

The product of its digits is 3840, while the sum is 24.

The square root of 42234522 is about 6498.8092755519. The cubic root of 42234522 is about 348.2484518549.

Adding to 42234522 its reverse (22543224), we get a palindrome (64777746).

The spelling of 42234522 in words is "forty-two million, two hundred thirty-four thousand, five hundred twenty-two".