4054005 has 12 divisors (see below), whose sum is σ = 7027020. Its totient is φ = 2162112.

The previous prime is 4053991. The next prime is 4054009. The reversal of 4054005 is 5004504.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1954404 + 2099601 = 1398^2 + 1449^2 .

It is not a de Polignac number, because 4054005 - 2⁴ = 4053989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4054009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45000 + ... + 45089.

It is an arithmetic number, because the mean of its divisors is an integer number (585585).

Almost surely, 2^4054005 is an apocalyptic number.

4054005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4054005 is a deficient number, since it is larger than the sum of its proper divisors (2973015).

4054005 is a wasteful number, since it uses less digits than its factorization.

4054005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90100 (or 90097 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 4054005 is about 2013.4559841228. The cubic root of 4054005 is about 159.4513106299.

Adding to 4054005 its reverse (5004504), we get a palindrome (9058509).

It can be divided in two parts, 40 and 54005, that added together give a palindrome (54045).

The spelling of 4054005 in words is "four million, fifty-four thousand, five".