42285089 has 24 divisors (see below), whose sum is σ = 56498400. Its totient is φ = 31207680.

The previous prime is 42285083. The next prime is 42285091. The reversal of 42285089 is 98058224.

It is a de Polignac number, because none of the positive numbers 2^k-42285089 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42285083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8177 + ... + 12305.

It is an arithmetic number, because the mean of its divisors is an integer number (2354100).

Almost surely, 2^42285089 is an apocalyptic number.

42285089 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

42285089 is a deficient number, since it is larger than the sum of its proper divisors (14213311).

42285089 is a wasteful number, since it uses less digits than its factorization.

42285089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4173 (or 4166 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 42285089 is about 6502.6985936609. The cubic root of 42285089 is about 348.3873812997.

The spelling of 42285089 in words is "forty-two million, two hundred eighty-five thousand, eighty-nine".