12397400 has 24 divisors (see below), whose sum is σ = 28824420. Its totient is φ = 4958880.

The previous prime is 12397397. The next prime is 12397409. The reversal of 12397400 is 479321.

It is a self number, because there is not a number n which added to its sum of digits gives 12397400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12397409) 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 5 ways as a sum of consecutive naturals, for example, 30794 + ... + 31193.

Almost surely, 2^12397400 is an apocalyptic number.

12397400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12397400 is an abundant number, since it is smaller than the sum of its proper divisors (16427020).

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

12397400 is a wasteful number, since it uses less digits than its factorization.

12397400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62003 (or 61994 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 12397400 is about 3520.9941777856. The cubic root of 12397400 is about 231.4427270865.

The spelling of 12397400 in words is "twelve million, three hundred ninety-seven thousand, four hundred".