4043340 has 72 divisors (see below), whose sum is σ = 14021280. Its totient is φ = 923904.

The previous prime is 4043321. The next prime is 4043341. The reversal of 4043340 is 433404.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4043341) 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, 345 + ... + 2864.

It is an arithmetic number, because the mean of its divisors is an integer number (194740).

Almost surely, 2^4043340 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 4043340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7010640).

4043340 is an abundant number, since it is smaller than the sum of its proper divisors (9977940).

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

4043340 is a wasteful number, since it uses less digits than its factorization.

4043340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3231 (or 3226 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 4043340 is about 2010.8058086250. The cubic root of 4043340 is about 159.3113632906.

Adding to 4043340 its reverse (433404), we get a palindrome (4476744).

The spelling of 4043340 in words is "four million, forty-three thousand, three hundred forty".