12587340 has 24 divisors (see below), whose sum is σ = 35244720. Its totient is φ = 3356608.

The previous prime is 12587303. The next prime is 12587381. The reversal of 12587340 is 4378521.

It is a super-2 number, since 2×12587340² = 316882256551200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12587298 and 12587307.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 104835 + ... + 104954.

It is an arithmetic number, because the mean of its divisors is an integer number (1468530).

Almost surely, 2^12587340 is an apocalyptic number.

12587340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12587340 is an abundant number, since it is smaller than the sum of its proper divisors (22657380).

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

12587340 is a wasteful number, since it uses less digits than its factorization.

12587340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209801 (or 209799 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 12587340 is about 3547.8641462153. The cubic root of 12587340 is about 232.6187161096.

The spelling of 12587340 in words is "twelve million, five hundred eighty-seven thousand, three hundred forty".