4044006 has 48 divisors (see below), whose sum is σ = 9316944. Its totient is φ = 1314144.

The previous prime is 4043999. The next prime is 4044013. The reversal of 4044006 is 6004404.

It is an interprime number because it is at equal distance from previous prime (4043999) and next prime (4044013).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 4044006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25680 + ... + 25836.

It is an arithmetic number, because the mean of its divisors is an integer number (194103).

Almost surely, 2^4044006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4044006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4658472).

4044006 is an abundant number, since it is smaller than the sum of its proper divisors (5272938).

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

4044006 is a wasteful number, since it uses less digits than its factorization.

4044006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4044006 is about 2010.9714070568. The cubic root of 4044006 is about 159.3201098172.

The spelling of 4044006 in words is "four million, forty-four thousand, six", and thus it is an eban number.