12287400 has 48 divisors (see below), whose sum is σ = 38092800. Its totient is φ = 3276480.

The previous prime is 12287389. The next prime is 12287419. The reversal of 12287400 is 478221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9640 + ... + 10839.

It is an arithmetic number, because the mean of its divisors is an integer number (793600).

Almost surely, 2^12287400 is an apocalyptic number.

12287400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12287400 is an abundant number, since it is smaller than the sum of its proper divisors (25805400).

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

12287400 is a wasteful number, since it uses less digits than its factorization.

12287400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20498 (or 20489 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 12287400 is about 3505.3387853387. The cubic root of 12287400 is about 230.7561753298.

The spelling of 12287400 in words is "twelve million, two hundred eighty-seven thousand, four hundred".