4043235840 has 160 divisors (see below), whose sum is σ = 14772447360. Its totient is φ = 924155904.

The previous prime is 4043235829. The next prime is 4043235841. The reversal of 4043235840 is 485323404.

It is a tau number, because it is divible by the number of its divisors (160).

It is not an unprimeable number, because it can be changed into a prime (4043235841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16156 + ... + 91364.

It is an arithmetic number, because the mean of its divisors is an integer number (92327796).

Almost surely, 2^4043235840 is an apocalyptic number.

4043235840 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 4043235840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7386223680).

4043235840 is an abundant number, since it is smaller than the sum of its proper divisors (10729211520).

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

4043235840 is an equidigital number, since it uses as much as digits as its factorization.

4043235840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75242 (or 75226 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 4043235840 is about 63586.4438382899. The cubic root of 4043235840 is about 1593.0999527849.

The spelling of 4043235840 in words is "four billion, forty-three million, two hundred thirty-five thousand, eight hundred forty".