12346780 has 12 divisors (see below), whose sum is σ = 25928280. Its totient is φ = 4938704.

The previous prime is 12346723. The next prime is 12346793. The reversal of 12346780 is 8764321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308650 + ... + 308689.

It is an arithmetic number, because the mean of its divisors is an integer number (2160690).

Almost surely, 2^12346780 is an apocalyptic number.

12346780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12346780 is an abundant number, since it is smaller than the sum of its proper divisors (13581500).

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

12346780 is a wasteful number, since it uses less digits than its factorization.

12346780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617348 (or 617346 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 12346780 is about 3513.7985144285. The cubic root of 12346780 is about 231.1272950191.

The spelling of 12346780 in words is "twelve million, three hundred forty-six thousand, seven hundred eighty".