12354340 has 12 divisors (see below), whose sum is σ = 25944156. Its totient is φ = 4941728.

The previous prime is 12354323. The next prime is 12354341. The reversal of 12354340 is 4345321.

It can be written as a sum of positive squares in 2 ways, for example, as 5635876 + 6718464 = 2374^2 + 2592^2 .

It is not an unprimeable number, because it can be changed into a prime (12354341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308839 + ... + 308878.

It is an arithmetic number, because the mean of its divisors is an integer number (2162013).

Almost surely, 2^12354340 is an apocalyptic number.

12354340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12354340 is an abundant number, since it is smaller than the sum of its proper divisors (13589816).

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

12354340 is a wasteful number, since it uses less digits than its factorization.

12354340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617726 (or 617724 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 12354340 is about 3514.8741086986. The cubic root of 12354340 is about 231.1744588908.

Adding to 12354340 its reverse (4345321), we get a palindrome (16699661).

The spelling of 12354340 in words is "twelve million, three hundred fifty-four thousand, three hundred forty".