12027400 has 144 divisors (see below), whose sum is σ = 35622720. Its totient is φ = 3696000.

The previous prime is 12027377. The next prime is 12027427. The reversal of 12027400 is 472021.

12027400 = T₃₈₄ + T₃₈₅ + ... + T₅₀₄.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 169365 + ... + 169435.

It is an arithmetic number, because the mean of its divisors is an integer number (247380).

Almost surely, 2^12027400 is an apocalyptic number.

12027400 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 12027400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17811360).

12027400 is an abundant number, since it is smaller than the sum of its proper divisors (23595320).

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

12027400 is a wasteful number, since it uses less digits than its factorization.

12027400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 12027400 is about 3468.0542094956. The cubic root of 12027400 is about 229.1169670001.

Adding to 12027400 its reverse (472021), we get a palindrome (12499421).

The spelling of 12027400 in words is "twelve million, twenty-seven thousand, four hundred".