42544122 has 8 divisors (see below), whose sum is σ = 85088256. Its totient is φ = 14181372.

The previous prime is 42544109. The next prime is 42544127. The reversal of 42544122 is 22144524.

It is a happy number.

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

42544122 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 42544092 and 42544101.

It is not an unprimeable number, because it can be changed into a prime (42544127) 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, 3545338 + ... + 3545349.

It is an arithmetic number, because the mean of its divisors is an integer number (10636032).

Almost surely, 2^42544122 is an apocalyptic number.

42544122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42544122 is a wasteful number, since it uses less digits than its factorization.

42544122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7090692.

The product of its digits is 2560, while the sum is 24.

The square root of 42544122 is about 6522.5855302939. The cubic root of 42544122 is about 349.0973256421.

Adding to 42544122 its reverse (22144524), we get a palindrome (64688646).

The spelling of 42544122 in words is "forty-two million, five hundred forty-four thousand, one hundred twenty-two".