42089166 has 32 divisors (see below), whose sum is σ = 106894080. Its totient is φ = 12025368.

The previous prime is 42089119. The next prime is 42089167. The reversal of 42089166 is 66198024.

It is a self number, because there is not a number n which added to its sum of digits gives 42089166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42089167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55296 + ... + 56051.

It is an arithmetic number, because the mean of its divisors is an integer number (3340440).

Almost surely, 2^42089166 is an apocalyptic number.

42089166 is an abundant number, since it is smaller than the sum of its proper divisors (64804914).

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

42089166 is a wasteful number, since it uses less digits than its factorization.

42089166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111365 (or 111359 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 42089166 is about 6487.6163573380. The cubic root of 42089166 is about 347.8484774359.

The spelling of 42089166 in words is "forty-two million, eighty-nine thousand, one hundred sixty-six".