12979340 has 24 divisors (see below), whose sum is σ = 29734992. Its totient is φ = 4719680.

The previous prime is 12979333. The next prime is 12979361. The reversal of 12979340 is 4397921.

It is a self number, because there is not a number n which added to its sum of digits gives 12979340.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29279 + ... + 29718.

It is an arithmetic number, because the mean of its divisors is an integer number (1238958).

Almost surely, 2^12979340 is an apocalyptic number.

12979340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12979340 is an abundant number, since it is smaller than the sum of its proper divisors (16755652).

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

12979340 is a wasteful number, since it uses less digits than its factorization.

12979340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59017 (or 59015 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 12979340 is about 3602.6851097480. The cubic root of 12979340 is about 235.0088422808.

The spelling of 12979340 in words is "twelve million, nine hundred seventy-nine thousand, three hundred forty".