4006816 has 24 divisors (see below), whose sum is σ = 8606304. Its totient is φ = 1821120.

The previous prime is 4006811. The next prime is 4006823. The reversal of 4006816 is 6186004.

It is not an unprimeable number, because it can be changed into a prime (4006811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5340 + ... + 6043.

It is an arithmetic number, because the mean of its divisors is an integer number (358596).

Almost surely, 2^4006816 is an apocalyptic number.

It is an amenable number.

4006816 is an abundant number, since it is smaller than the sum of its proper divisors (4599488).

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

4006816 is a wasteful number, since it uses less digits than its factorization.

4006816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11404 (or 11396 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 4006816 is about 2001.7032747138. The cubic root of 4006816 is about 158.8302184116.

The spelling of 4006816 in words is "four million, six thousand, eight hundred sixteen".