4090043943 has 16 divisors (see below), whose sum is σ = 6200240640. Its totient is φ = 2663283672.

The previous prime is 4090043941. The next prime is 4090043959. The reversal of 4090043943 is 3493400904.

It is not a de Polignac number, because 4090043943 - 2¹ = 4090043941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4090043898 and 4090043907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4090043941) 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, 1760271 + ... + 1762592.

It is an arithmetic number, because the mean of its divisors is an integer number (387515040).

Almost surely, 2^4090043943 is an apocalyptic number.

4090043943 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

4090043943 is a deficient number, since it is larger than the sum of its proper divisors (2110196697).

4090043943 is a wasteful number, since it uses less digits than its factorization.

4090043943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3522915 (or 3522909 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 4090043943 is about 63953.4513767631. The cubic root of 4090043943 is about 1599.2240955383.

The spelling of 4090043943 in words is "four billion, ninety million, forty-three thousand, nine hundred forty-three".