42166242 has 24 divisors (see below), whose sum is σ = 92390220. Its totient is φ = 13896960.

The previous prime is 42166237. The next prime is 42166253. The reversal of 42166242 is 24266124.

42166242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 41718681 + 447561 = 6459^2 + 669^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11559 + ... + 14762.

Almost surely, 2^42166242 is an apocalyptic number.

42166242 is an abundant number, since it is smaller than the sum of its proper divisors (50223978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42166242 is a wasteful number, since it uses less digits than its factorization.

42166242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26418 (or 26415 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 42166242 is about 6493.5538805803. The cubic root of 42166242 is about 348.0606810553.

The spelling of 42166242 in words is "forty-two million, one hundred sixty-six thousand, two hundred forty-two".