12976340 has 48 divisors (see below), whose sum is σ = 30376080. Its totient is φ = 4623360.

The previous prime is 12976339. The next prime is 12976357. The reversal of 12976340 is 4367921.

It can be written as a sum of positive squares in 8 ways, for example, as 217156 + 12759184 = 466^2 + 3572^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12976297 and 12976306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6680 + ... + 8400.

It is an arithmetic number, because the mean of its divisors is an integer number (632835).

Almost surely, 2^12976340 is an apocalyptic number.

12976340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12976340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15188040).

12976340 is an abundant number, since it is smaller than the sum of its proper divisors (17399740).

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

12976340 is a wasteful number, since it uses less digits than its factorization.

12976340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 12976340 is about 3602.2687295647. The cubic root of 12976340 is about 234.9907345072.

The spelling of 12976340 in words is "twelve million, nine hundred seventy-six thousand, three hundred forty".