12508890 has 16 divisors (see below), whose sum is σ = 30021408. Its totient is φ = 3335696.

The previous prime is 12508879. The next prime is 12508907. The reversal of 12508890 is 9880521.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208452 + ... + 208511.

It is an arithmetic number, because the mean of its divisors is an integer number (1876338).

Almost surely, 2^12508890 is an apocalyptic number.

12508890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12508890 is an abundant number, since it is smaller than the sum of its proper divisors (17512518).

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

12508890 is a wasteful number, since it uses less digits than its factorization.

12508890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416973.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 12508890 is about 3536.7909183326. The cubic root of 12508890 is about 232.1344469424.

The spelling of 12508890 in words is "twelve million, five hundred eight thousand, eight hundred ninety".