42059839 has 8 divisors (see below), whose sum is σ = 43558400. Its totient is φ = 40570200.

The previous prime is 42059833. The next prime is 42059851. The reversal of 42059839 is 93895024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42059839 - 2⁹ = 42059327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42059833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8212 + ... + 12310.

It is an arithmetic number, because the mean of its divisors is an integer number (5444800).

Almost surely, 2^42059839 is an apocalyptic number.

42059839 is a deficient number, since it is larger than the sum of its proper divisors (1498561).

42059839 is a wasteful number, since it uses less digits than its factorization.

42059839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4461.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 42059839 is about 6485.3557342678. The cubic root of 42059839 is about 347.7676670710.

The spelling of 42059839 in words is "forty-two million, fifty-nine thousand, eight hundred thirty-nine".