40004043 has 16 divisors (see below), whose sum is σ = 58300416. Its totient is φ = 24289920.

The previous prime is 40004039. The next prime is 40004047. The reversal of 40004043 is 34040004.

40004043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40004039) and next prime (40004047).

It is not a de Polignac number, because 40004043 - 2² = 40004039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40004047) 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 15 ways as a sum of consecutive naturals, for example, 11071 + ... + 14232.

It is an arithmetic number, because the mean of its divisors is an integer number (3643776).

Almost surely, 2^40004043 is an apocalyptic number.

40004043 is a deficient number, since it is larger than the sum of its proper divisors (18296373).

40004043 is a wasteful number, since it uses less digits than its factorization.

40004043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25354.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 40004043 is about 6324.8749394751. The cubic root of 40004043 is about 342.0067113351.

Adding to 40004043 its reverse (34040004), we get a palindrome (74044047).

The spelling of 40004043 in words is "forty million, four thousand, forty-three".