12453340 has 24 divisors (see below), whose sum is σ = 26791632. Its totient is φ = 4859520.

The previous prime is 12453319. The next prime is 12453347. The reversal of 12453340 is 4335421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12453347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6774 + ... + 8413.

It is an arithmetic number, because the mean of its divisors is an integer number (1116318).

Almost surely, 2^12453340 is an apocalyptic number.

12453340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12453340 is an abundant number, since it is smaller than the sum of its proper divisors (14338292).

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

12453340 is a wasteful number, since it uses less digits than its factorization.

12453340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15237 (or 15235 counting only the distinct ones).

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

The square root of 12453340 is about 3528.9290160047. The cubic root of 12453340 is about 231.7903129151.

Adding to 12453340 its reverse (4335421), we get a palindrome (16788761).

The spelling of 12453340 in words is "twelve million, four hundred fifty-three thousand, three hundred forty".