12343720 has 32 divisors (see below), whose sum is σ = 27877320. Its totient is φ = 4919040.

The previous prime is 12343703. The next prime is 12343769. The reversal of 12343720 is 2734321.

12343720 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 4 ways, for example, as 9474084 + 2869636 = 3078^2 + 1694^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12343691 and 12343700.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16474 + ... + 17206.

Almost surely, 2^12343720 is an apocalyptic number.

12343720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12343720 is an abundant number, since it is smaller than the sum of its proper divisors (15533600).

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

12343720 is a wasteful number, since it uses less digits than its factorization.

12343720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165 (or 1161 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 12343720 is about 3513.3630612278. The cubic root of 12343720 is about 231.1081994072.

It can be divided in two parts, 123 and 43720, that multiplied together give a triangular number (5377560 = T₃₂₇₉).

The spelling of 12343720 in words is "twelve million, three hundred forty-three thousand, seven hundred twenty".