42112144 has 10 divisors (see below), whose sum is σ = 81592310. Its totient is φ = 21056064.

The previous prime is 42112139. The next prime is 42112153. The reversal of 42112144 is 44121124.

It can be written as a sum of positive squares in only one way, i.e., 30470400 + 11641744 = 5520^2 + 3412^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315989 + ... + 1316020.

It is an arithmetic number, because the mean of its divisors is an integer number (8159231).

Almost surely, 2^42112144 is an apocalyptic number.

It is an amenable number.

42112144 is a deficient number, since it is larger than the sum of its proper divisors (39480166).

42112144 is a wasteful number, since it uses less digits than its factorization.

42112144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632017 (or 2632011 counting only the distinct ones).

The product of its digits is 256, while the sum is 19.

The square root of 42112144 is about 6489.3870280636. The cubic root of 42112144 is about 347.9117669471.

Adding to 42112144 its reverse (44121124), we get a palindrome (86233268).

The spelling of 42112144 in words is "forty-two million, one hundred twelve thousand, one hundred forty-four".