4043000 has 64 divisors (see below), whose sum is σ = 10221120. Its totient is φ = 1488000.

The previous prime is 4042993. The next prime is 4043023. The reversal of 4043000 is 3404.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12845 + ... + 13155.

It is an arithmetic number, because the mean of its divisors is an integer number (159705).

Almost surely, 2^4043000 is an apocalyptic number.

4043000 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 4043000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5110560).

4043000 is an abundant number, since it is smaller than the sum of its proper divisors (6178120).

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

4043000 is a wasteful number, since it uses less digits than its factorization.

4043000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 4043000 is about 2010.7212636266. The cubic root of 4043000 is about 159.3068977265.

Adding to 4043000 its reverse (3404), we get a palindrome (4046404).

The spelling of 4043000 in words is "four million, forty-three thousand".