4045808 has 40 divisors (see below), whose sum is σ = 8624448. Its totient is φ = 1827072.

The previous prime is 4045787. The next prime is 4045817. The reversal of 4045808 is 8085404.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10841 + ... + 11207.

Almost surely, 2^4045808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4045808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4312224).

4045808 is an abundant number, since it is smaller than the sum of its proper divisors (4578640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4045808 is a wasteful number, since it uses less digits than its factorization.

4045808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 4045808 is about 2011.4193993297. The cubic root of 4045808 is about 159.3437705310.

It can be divided in two parts, 404 and 5808, that multiplied together give a palindrome (2346432).

The spelling of 4045808 in words is "four million, forty-five thousand, eight hundred eight".