12357320 has 16 divisors (see below), whose sum is σ = 27804060. Its totient is φ = 4942912.

The previous prime is 12357307. The next prime is 12357343. The reversal of 12357320 is 2375321.

12357320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11062276 + 1295044 = 3326^2 + 1138^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154427 + ... + 154506.

Almost surely, 2^12357320 is an apocalyptic number.

12357320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12357320 is an abundant number, since it is smaller than the sum of its proper divisors (15446740).

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

12357320 is a wasteful number, since it uses less digits than its factorization.

12357320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308944 (or 308940 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 12357320 is about 3515.2979959031. The cubic root of 12357320 is about 231.1930446537.

The spelling of 12357320 in words is "twelve million, three hundred fifty-seven thousand, three hundred twenty".