4055905 has 8 divisors (see below), whose sum is σ = 5562432. Its totient is φ = 2781168.

The previous prime is 4055899. The next prime is 4055917. The reversal of 4055905 is 5095504.

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

It is a cyclic number.

It is not a de Polignac number, because 4055905 - 2³ = 4055897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 57907 + ... + 57976.

It is an arithmetic number, because the mean of its divisors is an integer number (695304).

Almost surely, 2^4055905 is an apocalyptic number.

It is an amenable number.

4055905 is a deficient number, since it is larger than the sum of its proper divisors (1506527).

4055905 is a wasteful number, since it uses less digits than its factorization.

4055905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115895.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 4055905 is about 2013.9277544142. The cubic root of 4055905 is about 159.4762168788.

It can be divided in two parts, 40 and 55905, that added together give a triangular number (55945 = T₃₃₄).

The spelling of 4055905 in words is "four million, fifty-five thousand, nine hundred five".