4243400 has 72 divisors (see below), whose sum is σ = 11503170. Its totient is φ = 1451520.

The previous prime is 4243397. The next prime is 4243409. The reversal of 4243400 is 43424.

It can be written as a sum of positive squares in 3 ways, for example, as 2244004 + 1999396 = 1498^2 + 1414^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9584 + ... + 10016.

Almost surely, 2^4243400 is an apocalyptic number.

4243400 is a gapful number since it is divisible by the number (40) 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 4243400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5751585).

4243400 is an abundant number, since it is smaller than the sum of its proper divisors (7259770).

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

4243400 is a wasteful number, since it uses less digits than its factorization.

4243400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 447 counting only the distinct ones).

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

The square root of 4243400 is about 2059.9514557387. The cubic root of 4243400 is about 161.8966978463.

Adding to 4243400 its reverse (43424), we get a palindrome (4286824).

The spelling of 4243400 in words is "four million, two hundred forty-three thousand, four hundred".