42013144 has 16 divisors (see below), whose sum is σ = 79063200. Its totient is φ = 20929632.

The previous prime is 42013121. The next prime is 42013163. The reversal of 42013144 is 44131024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7264 + ... + 11695.

It is an arithmetic number, because the mean of its divisors is an integer number (4941450).

Almost surely, 2^42013144 is an apocalyptic number.

It is an amenable number.

42013144 is a deficient number, since it is larger than the sum of its proper divisors (37050056).

42013144 is a wasteful number, since it uses less digits than its factorization.

42013144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19242 (or 19238 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 42013144 is about 6481.7547006964. The cubic root of 42013144 is about 347.6389217338.

Adding to 42013144 its reverse (44131024), we get a palindrome (86144168).

The spelling of 42013144 in words is "forty-two million, thirteen thousand, one hundred forty-four".