12947340 has 96 divisors (see below), whose sum is σ = 42900480. Its totient is φ = 2854656.

The previous prime is 12947339. The next prime is 12947351. The reversal of 12947340 is 4374921.

It is a happy number.

12947340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12947340² = 335267226151200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12947298 and 12947307.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11649 + ... + 12711.

It is an arithmetic number, because the mean of its divisors is an integer number (446880).

Almost surely, 2^12947340 is an apocalyptic number.

12947340 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 12947340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21450240).

12947340 is an abundant number, since it is smaller than the sum of its proper divisors (29953140).

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

12947340 is a wasteful number, since it uses less digits than its factorization.

12947340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 12947340 is about 3598.2412370490. The cubic root of 12947340 is about 234.8155486377.

The spelling of 12947340 in words is "twelve million, nine hundred forty-seven thousand, three hundred forty".