4403406 has 32 divisors (see below), whose sum is σ = 10241280. Its totient is φ = 1236096.

The previous prime is 4403393. The next prime is 4403411. The reversal of 4403406 is 6043044.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1590 + ... + 3366.

It is an arithmetic number, because the mean of its divisors is an integer number (320040).

Almost surely, 2^4403406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4403406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5120640).

4403406 is an abundant number, since it is smaller than the sum of its proper divisors (5837874).

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

4403406 is a wasteful number, since it uses less digits than its factorization.

4403406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 4403406 is about 2098.4294126799. The cubic root of 4403406 is about 163.9065251579.

The spelling of 4403406 in words is "four million, four hundred three thousand, four hundred six".