2443400 has 48 divisors (see below), whose sum is σ = 5989200. Its totient is φ = 924480.

The previous prime is 2443387. The next prime is 2443403. The reversal of 2443400 is 43442.

It is not an unprimeable number, because it can be changed into a prime (2443403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3479 + ... + 4121.

It is an arithmetic number, because the mean of its divisors is an integer number (124775).

2^2443400 is an apocalyptic number.

2443400 is a gapful number since it is divisible by the number (20) 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 2443400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2994600).

2443400 is an abundant number, since it is smaller than the sum of its proper divisors (3545800).

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

2443400 is a wasteful number, since it uses less digits than its factorization.

2443400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 669 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 2443400 is about 1563.1378697991. The cubic root of 2443400 is about 134.6888122693.

Adding to 2443400 its reverse (43442), we get a palindrome (2486842).

The spelling of 2443400 in words is "two million, four hundred forty-three thousand, four hundred".