42089339 has 4 divisors (see below), whose sum is σ = 42392280. Its totient is φ = 41786400.

The previous prime is 42089323. The next prime is 42089347. The reversal of 42089339 is 93398024.

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

It is a cyclic number.

It is not a de Polignac number, because 42089339 - 2⁴ = 42089323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42089639) 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, 151262 + ... + 151539.

It is an arithmetic number, because the mean of its divisors is an integer number (10598070).

Almost surely, 2^42089339 is an apocalyptic number.

42089339 is a deficient number, since it is larger than the sum of its proper divisors (302941).

42089339 is a wasteful number, since it uses less digits than its factorization.

42089339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302940.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 42089339 is about 6487.6296904185. The cubic root of 42089339 is about 347.8489540249.

The spelling of 42089339 in words is "forty-two million, eighty-nine thousand, three hundred thirty-nine".