42589518 has 16 divisors (see below), whose sum is σ = 85368576. Its totient is φ = 14164920.

The previous prime is 42589511. The next prime is 42589523. The reversal of 42589518 is 81598524.

It is a happy number.

42589518 is nontrivially palindromic in base 15.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42589518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42589511) 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, 4888 + ... + 10443.

It is an arithmetic number, because the mean of its divisors is an integer number (5335536).

Almost surely, 2^42589518 is an apocalyptic number.

42589518 is an abundant number, since it is smaller than the sum of its proper divisors (42779058).

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

42589518 is a wasteful number, since it uses less digits than its factorization.

42589518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15799.

The product of its digits is 115200, while the sum is 42.

The square root of 42589518 is about 6526.0645108672. The cubic root of 42589518 is about 349.2214476762.

The spelling of 42589518 in words is "forty-two million, five hundred eighty-nine thousand, five hundred eighteen".