42282581 has 8 divisors (see below), whose sum is σ = 48554400. Its totient is φ = 36415440.

The previous prime is 42282523. The next prime is 42282593. The reversal of 42282581 is 18528224.

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 42282581 - 2¹⁸ = 42020437 is a prime.

It is a super-2 number, since 2×42282581² = 3575633312043122, 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 (42282511) 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, 100946 + ... + 101363.

It is an arithmetic number, because the mean of its divisors is an integer number (6069300).

Almost surely, 2^42282581 is an apocalyptic number.

It is an amenable number.

42282581 is a deficient number, since it is larger than the sum of its proper divisors (6271819).

42282581 is a wasteful number, since it uses less digits than its factorization.

42282581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202339.

The product of its digits is 10240, while the sum is 32.

The square root of 42282581 is about 6502.5057477868. The cubic root of 42282581 is about 348.3804933490.

The spelling of 42282581 in words is "forty-two million, two hundred eighty-two thousand, five hundred eighty-one".