42244285 has 8 divisors (see below), whose sum is σ = 50770656. Its totient is φ = 33743760.

The previous prime is 42244283. The next prime is 42244291. The reversal of 42244285 is 58244224.

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

It is not a de Polignac number, because 42244285 - 2¹ = 42244283 is a prime.

It is a super-2 number, since 2×42244285² = 3569159230322450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42244283) 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, 2659 + ... + 9568.

It is an arithmetic number, because the mean of its divisors is an integer number (6346332).

Almost surely, 2^42244285 is an apocalyptic number.

It is an amenable number.

42244285 is a deficient number, since it is larger than the sum of its proper divisors (8526371).

42244285 is a wasteful number, since it uses less digits than its factorization.

42244285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12923.

The product of its digits is 20480, while the sum is 31.

The square root of 42244285 is about 6499.5603697481. The cubic root of 42244285 is about 348.2752836781.

The spelling of 42244285 in words is "forty-two million, two hundred forty-four thousand, two hundred eighty-five".