12798340 has 24 divisors (see below), whose sum is σ = 27280512. Its totient is φ = 5042400.

The previous prime is 12798323. The next prime is 12798341. The reversal of 12798340 is 4389721.

It is a junction number, because it is equal to n+sod(n) for n = 12798296 and 12798305.

It is not an unprimeable number, because it can be changed into a prime (12798341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3436 + ... + 6115.

It is an arithmetic number, because the mean of its divisors is an integer number (1136688).

Almost surely, 2^12798340 is an apocalyptic number.

12798340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12798340 is an abundant number, since it is smaller than the sum of its proper divisors (14482172).

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

12798340 is a wasteful number, since it uses less digits than its factorization.

12798340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9627 (or 9625 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 12798340 is about 3577.4767644249. The cubic root of 12798340 is about 233.9113063918.

The spelling of 12798340 in words is "twelve million, seven hundred ninety-eight thousand, three hundred forty".