12589990 has 32 divisors (see below), whose sum is σ = 26604864. Its totient is φ = 4199040.

The previous prime is 12589949. The next prime is 12590003. The reversal of 12589990 is 9998521.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160 + ... + 5020.

It is an arithmetic number, because the mean of its divisors is an integer number (831402).

Almost surely, 2^12589990 is an apocalyptic number.

12589990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12589990 is an abundant number, since it is smaller than the sum of its proper divisors (14014874).

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

12589990 is a wasteful number, since it uses less digits than its factorization.

12589990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4912.

The product of its (nonzero) digits is 58320, while the sum is 43.

The square root of 12589990 is about 3548.2375906920. The cubic root of 12589990 is about 232.6350392921.

The spelling of 12589990 in words is "twelve million, five hundred eighty-nine thousand, nine hundred ninety".