4055805 has 32 divisors (see below), whose sum is σ = 7768320. Its totient is φ = 1995840.

The previous prime is 4055801. The next prime is 4055833. The reversal of 4055805 is 5085504.

It is not a de Polignac number, because 4055805 - 2² = 4055801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4055801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 600 + ... + 2910.

It is an arithmetic number, because the mean of its divisors is an integer number (242760).

Almost surely, 2^4055805 is an apocalyptic number.

4055805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4055805 is a deficient number, since it is larger than the sum of its proper divisors (3712515).

4055805 is a wasteful number, since it uses less digits than its factorization.

4055805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338 (or 2332 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 4055805 is about 2013.9029271541. The cubic root of 4055805 is about 159.4749062176.

The spelling of 4055805 in words is "four million, fifty-five thousand, eight hundred five".