12840300 has 108 divisors (see below), whose sum is σ = 43939896. Its totient is φ = 3110400.

The previous prime is 12840299. The next prime is 12840307. The reversal of 12840300 is 304821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12840307) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9252 + ... + 10548.

Almost surely, 2^12840300 is an apocalyptic number.

12840300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12840300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21969948).

12840300 is an abundant number, since it is smaller than the sum of its proper divisors (31099596).

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

12840300 is a wasteful number, since it uses less digits than its factorization.

12840300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328 (or 1318 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 12840300 is about 3583.3364341072. The cubic root of 12840300 is about 234.1666575201.

The spelling of 12840300 in words is "twelve million, eight hundred forty thousand, three hundred".