42044112 has 180 divisors, whose sum is σ = 137213440. Its totient is φ = 11975040.

The previous prime is 42044089. The next prime is 42044117. The reversal of 42044112 is 21144024.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42044117) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 330993 + ... + 331119.

Almost surely, 2^42044112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42044112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68606720).

42044112 is an abundant number, since it is smaller than the sum of its proper divisors (95169328).

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

42044112 is a wasteful number, since it uses less digits than its factorization.

42044112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 42044112 is about 6484.1431199504. The cubic root of 42044112 is about 347.7243159466.

Adding to 42044112 its reverse (21144024), we get a palindrome (63188136).

The spelling of 42044112 in words is "forty-two million, forty-four thousand, one hundred twelve".