4406 has 4 divisors (see below), whose sum is σ = 6612. Its totient is φ = 2202.

The previous prime is 4397. The next prime is 4409. The reversal of 4406 is 6044.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 11, base 15 and base 16.

It is a nialpdrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4409) by changing a digit.

4406 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100 + ... + 1103.

It is an arithmetic number, because the mean of its divisors is an integer number (1653).

2⁴⁴⁰⁶ is an apocalyptic number.

4406 is a deficient number, since it is larger than the sum of its proper divisors (2206).

4406 is a wasteful number, since it uses less digits than its factorization.

4406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 4406 is about 66.3777071011. The cubic root of 4406 is about 16.3938704041.

The spelling of 4406 in words is "four thousand, four hundred six".