12680442 has 48 divisors (see below), whose sum is σ = 29076480. Its totient is φ = 4096008.

The previous prime is 12680441. The next prime is 12680443. The reversal of 12680442 is 24408621.

It is an interprime number because it is at equal distance from previous prime (12680441) and next prime (12680443).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12680441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99783 + ... + 99909.

It is an arithmetic number, because the mean of its divisors is an integer number (605760).

Almost surely, 2^12680442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12680442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14538240).

12680442 is an abundant number, since it is smaller than the sum of its proper divisors (16396038).

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

12680442 is a wasteful number, since it uses less digits than its factorization.

12680442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 12680442 is about 3560.9608253953. The cubic root of 12680442 is about 233.1908277233.

The spelling of 12680442 in words is "twelve million, six hundred eighty thousand, four hundred forty-two".