42982261 has 12 divisors (see below), whose sum is σ = 50400768. Its totient is φ = 36546552.

The previous prime is 42982259. The next prime is 42982319. The reversal of 42982261 is 16228924.

It is not a de Polignac number, because 42982261 - 2¹ = 42982259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42982201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2770 + ... + 9676.

It is an arithmetic number, because the mean of its divisors is an integer number (4200064).

Almost surely, 2^42982261 is an apocalyptic number.

It is an amenable number.

42982261 is a deficient number, since it is larger than the sum of its proper divisors (7418507).

42982261 is a wasteful number, since it uses less digits than its factorization.

42982261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7048 (or 7041 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 42982261 is about 6556.0857987064. The cubic root of 42982261 is about 350.2916236154.

The spelling of 42982261 in words is "forty-two million, nine hundred eighty-two thousand, two hundred sixty-one".