42112369 has 8 divisors (see below), whose sum is σ = 46208232. Its totient is φ = 38138880.

The previous prime is 42112363. The next prime is 42112403. The reversal of 42112369 is 96321124.

It can be written as a sum of positive squares in 4 ways, for example, as 18225 + 42094144 = 135^2 + 6488^2 .

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

It is not a de Polignac number, because 42112369 - 2³ = 42112361 is a prime.

It is a super-2 number, since 2×42112369² = 3546903245584322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42112361) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29872 + ... + 31249.

It is an arithmetic number, because the mean of its divisors is an integer number (5776029).

Almost surely, 2^42112369 is an apocalyptic number.

It is an amenable number.

42112369 is a deficient number, since it is larger than the sum of its proper divisors (4095863).

42112369 is a wasteful number, since it uses less digits than its factorization.

42112369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61187.

The product of its digits is 2592, while the sum is 28.

The square root of 42112369 is about 6489.4043640384. The cubic root of 42112369 is about 347.9123865625.

The spelling of 42112369 in words is "forty-two million, one hundred twelve thousand, three hundred sixty-nine".