12299380 has 24 divisors (see below), whose sum is σ = 25999848. Its totient is φ = 4887168.

The previous prime is 12299377. The next prime is 12299387. The reversal of 12299380 is 8399221.

It can be written as a sum of positive squares in 4 ways, for example, as 1710864 + 10588516 = 1308^2 + 3254^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12299387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1182 + ... + 5098.

It is an arithmetic number, because the mean of its divisors is an integer number (1083327).

Almost surely, 2^12299380 is an apocalyptic number.

12299380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12299380 is an abundant number, since it is smaller than the sum of its proper divisors (13700468).

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

12299380 is a wasteful number, since it uses less digits than its factorization.

12299380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4083 (or 4081 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 12299380 is about 3507.0471910141. The cubic root of 12299380 is about 230.8311453813.

It can be divided in two parts, 1229 and 9380, that added together give a square (10609 = 103²).

The spelling of 12299380 in words is "twelve million, two hundred ninety-nine thousand, three hundred eighty".