4001240043 has 12 divisors (see below), whose sum is σ = 5781341280. Its totient is φ = 2666675376.

The previous prime is 4001240041. The next prime is 4001240083. The reversal of 4001240043 is 3400421004.

It is not a de Polignac number, because 4001240043 - 2¹ = 4001240041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4001239998 and 4001240025.

It is not an unprimeable number, because it can be changed into a prime (4001240041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36408 + ... + 96581.

It is an arithmetic number, because the mean of its divisors is an integer number (481778440).

Almost surely, 2^4001240043 is an apocalyptic number.

4001240043 is a deficient number, since it is larger than the sum of its proper divisors (1780101237).

4001240043 is a wasteful number, since it uses less digits than its factorization.

4001240043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136338 (or 136335 counting only the distinct ones).

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

The square root of 4001240043 is about 63255.3558443868. The cubic root of 4001240043 is about 1587.5650721503.

Adding to 4001240043 its reverse (3400421004), we get a palindrome (7401661047).

The spelling of 4001240043 in words is "four billion, one million, two hundred forty thousand, forty-three".