4143040 has 84 divisors (see below), whose sum is σ = 10945368. Its totient is φ = 1492480.

The previous prime is 4143037. The next prime is 4143043. The reversal of 4143040 is 403414.

4143040 = 247² + 248² + ... + 301².

It is an interprime number because it is at equal distance from previous prime (4143037) and next prime (4143043).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4143043) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 38667 + ... + 38773.

It is an arithmetic number, because the mean of its divisors is an integer number (130302).

Almost surely, 2^4143040 is an apocalyptic number.

4143040 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 4143040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5472684).

4143040 is an abundant number, since it is smaller than the sum of its proper divisors (6802328).

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

4143040 is a wasteful number, since it uses less digits than its factorization.

4143040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4143040 is about 2035.4458970948. The cubic root of 4143040 is about 160.6101701197.

Adding to 4143040 its reverse (403414), we get a palindrome (4546454).

The spelling of 4143040 in words is "four million, one hundred forty-three thousand, forty".