12589380 has 36 divisors (see below), whose sum is σ = 38188332. Its totient is φ = 3357120.

The previous prime is 12589351. The next prime is 12589387. The reversal of 12589380 is 8398521.

It can be written as a sum of positive squares in 2 ways, for example, as 2742336 + 9847044 = 1656^2 + 3138^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12589387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34791 + ... + 35150.

It is an arithmetic number, because the mean of its divisors is an integer number (1060787).

Almost surely, 2^12589380 is an apocalyptic number.

12589380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12589380 is an abundant number, since it is smaller than the sum of its proper divisors (25598952).

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

12589380 is a wasteful number, since it uses less digits than its factorization.

12589380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69956 (or 69951 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 12589380 is about 3548.1516314836. The cubic root of 12589380 is about 232.6312820832.

The spelling of 12589380 in words is "twelve million, five hundred eighty-nine thousand, three hundred eighty".