4243140 has 72 divisors (see below), whose sum is σ = 14047488. Its totient is φ = 1028160.

The previous prime is 4243139. The next prime is 4243147. The reversal of 4243140 is 413424.

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 (4243147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 909 + ... + 3051.

It is an arithmetic number, because the mean of its divisors is an integer number (195104).

Almost surely, 2^4243140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4243140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7023744).

4243140 is an abundant number, since it is smaller than the sum of its proper divisors (9804348).

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

4243140 is a wasteful number, since it uses less digits than its factorization.

4243140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169 (or 2164 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4243140 is about 2059.8883464887. Note that the first 3 decimals coincide. The cubic root of 4243140 is about 161.8933912210.

Adding to 4243140 its reverse (413424), we get a palindrome (4656564).

The spelling of 4243140 in words is "four million, two hundred forty-three thousand, one hundred forty".