12566830 has 32 divisors (see below), whose sum is σ = 23351328. Its totient is φ = 4867200.

The previous prime is 12566821. The next prime is 12566837. The reversal of 12566830 is 3866521.

It is a junction number, because it is equal to n+sod(n) for n = 12566792 and 12566801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12566837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69340 + ... + 69520.

It is an arithmetic number, because the mean of its divisors is an integer number (729729).

Almost surely, 2^12566830 is an apocalyptic number.

12566830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12566830 is a deficient number, since it is larger than the sum of its proper divisors (10784498).

12566830 is a wasteful number, since it uses less digits than its factorization.

12566830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 12566830 is about 3544.9724963672. The cubic root of 12566830 is about 232.4923032870.

The spelling of 12566830 in words is "twelve million, five hundred sixty-six thousand, eight hundred thirty".