4023906 has 16 divisors (see below), whose sum is σ = 8158944. Its totient is φ = 1322784.

The previous prime is 4023889. The next prime is 4023907. The reversal of 4023906 is 6093204.

It is not an unprimeable number, because it can be changed into a prime (4023907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4156 + ... + 5031.

It is an arithmetic number, because the mean of its divisors is an integer number (509934).

Almost surely, 2^4023906 is an apocalyptic number.

4023906 is an abundant number, since it is smaller than the sum of its proper divisors (4135038).

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

4023906 is a wasteful number, since it uses less digits than its factorization.

4023906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9265.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 4023906 is about 2005.9675969467. The cubic root of 4023906 is about 159.0557140302.

The spelling of 4023906 in words is "four million, twenty-three thousand, nine hundred six".