42259285 has 8 divisors (see below), whose sum is σ = 51668280. Its totient is φ = 33169344.

The previous prime is 42259277. The next prime is 42259289. The reversal of 42259285 is 58295224.

42259285 is nontrivially palindromic in base 14.

It can be written as a sum of positive squares in 4 ways, for example, as 6749604 + 35509681 = 2598^2 + 5959^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 42259285 - 2³ = 42259277 is a prime.

It is a super-2 number, since 2×42259285² = 3571694337422450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42259289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79470 + ... + 79999.

It is an arithmetic number, because the mean of its divisors is an integer number (6458535).

Almost surely, 2^42259285 is an apocalyptic number.

It is an amenable number.

42259285 is a deficient number, since it is larger than the sum of its proper divisors (9408995).

42259285 is a wasteful number, since it uses less digits than its factorization.

42259285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159527.

The product of its digits is 57600, while the sum is 37.

The square root of 42259285 is about 6500.7141915331. The cubic root of 42259285 is about 348.3165003859.

The spelling of 42259285 in words is "forty-two million, two hundred fifty-nine thousand, two hundred eighty-five".