4005043 has 8 divisors (see below), whose sum is σ = 4589312. Its totient is φ = 3423816.

The previous prime is 4005019. The next prime is 4005049. The reversal of 4005043 is 3405004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4005043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4005049) 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 7 ways as a sum of consecutive naturals, for example, 4696 + ... + 5482.

It is an arithmetic number, because the mean of its divisors is an integer number (573664).

Almost surely, 2^4005043 is an apocalyptic number.

4005043 is a deficient number, since it is larger than the sum of its proper divisors (584269).

4005043 is an equidigital number, since it uses as much as digits as its factorization.

4005043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 4005043 is about 2001.2603528777. The cubic root of 4005043 is about 158.8067877105.

The spelling of 4005043 in words is "four million, five thousand, forty-three".