4012806 has 24 divisors (see below), whose sum is σ = 9336600. Its totient is φ = 1146432.

The previous prime is 4012783. The next prime is 4012829. The reversal of 4012806 is 6082104.

4012806 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4012783) and next prime (4012829).

It is a super-2 number, since 2×4012806² = 32205223987272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

4012806 is strictly pandigital in base 8.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a zygodrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6531 + ... + 7118.

It is an arithmetic number, because the mean of its divisors is an integer number (389025).

Almost surely, 2^4012806 is an apocalyptic number.

4012806 is an abundant number, since it is smaller than the sum of its proper divisors (5323794).

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

4012806 is a wasteful number, since it uses less digits than its factorization.

4012806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13668 (or 13661 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 4012806 is about 2003.1989416930. The cubic root of 4012806 is about 158.9093268863.

The spelling of 4012806 in words is "four million, twelve thousand, eight hundred six".