12587380 has 24 divisors (see below), whose sum is σ = 28467432. Its totient is φ = 4647552.

The previous prime is 12587303. The next prime is 12587381. The reversal of 12587380 is 8378521.

It can be written as a sum of positive squares in 4 ways, for example, as 41616 + 12545764 = 204^2 + 3542^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12587381) 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, 23947 + ... + 24466.

It is an arithmetic number, because the mean of its divisors is an integer number (1186143).

Almost surely, 2^12587380 is an apocalyptic number.

12587380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12587380 is an abundant number, since it is smaller than the sum of its proper divisors (15880052).

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

12587380 is a wasteful number, since it uses less digits than its factorization.

12587380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48435 (or 48433 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 12587380 is about 3547.8697834052. The cubic root of 12587380 is about 232.6189625143.

The spelling of 12587380 in words is "twelve million, five hundred eighty-seven thousand, three hundred eighty".