42885089 has 4 divisors (see below), whose sum is σ = 46183956. Its totient is φ = 39586224.

The previous prime is 42885083. The next prime is 42885119. The reversal of 42885089 is 98058824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23814400 + 19070689 = 4880^2 + 4367^2 .

It is a cyclic number.

It is not a de Polignac number, because 42885089 - 2⁸ = 42884833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42885083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1649414 + ... + 1649439.

It is an arithmetic number, because the mean of its divisors is an integer number (11545989).

Almost surely, 2^42885089 is an apocalyptic number.

It is an amenable number.

42885089 is a deficient number, since it is larger than the sum of its proper divisors (3298867).

42885089 is a wasteful number, since it uses less digits than its factorization.

42885089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3298866.

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 42885089 is about 6548.6707811586. The cubic root of 42885089 is about 350.0274509082.

The spelling of 42885089 in words is "forty-two million, eight hundred eighty-five thousand, eighty-nine".