12840614 has 4 divisors (see below), whose sum is σ = 19260924. Its totient is φ = 6420306.

The previous prime is 12840613. The next prime is 12840631. The reversal of 12840614 is 41604821.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12840613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3210152 + ... + 3210155.

It is an arithmetic number, because the mean of its divisors is an integer number (4815231).

Almost surely, 2^12840614 is an apocalyptic number.

12840614 is a deficient number, since it is larger than the sum of its proper divisors (6420310).

12840614 is an equidigital number, since it uses as much as digits as its factorization.

12840614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6420309.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 12840614 is about 3583.3802477549. The cubic root of 12840614 is about 234.1685662951.

The spelling of 12840614 in words is "twelve million, eight hundred forty thousand, six hundred fourteen".