4002205 has 4 divisors (see below), whose sum is σ = 4802652. Its totient is φ = 3201760.

The previous prime is 4002197. The next prime is 4002209. The reversal of 4002205 is 5022004.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1249924 + 2752281 = 1118^2 + 1659^2 .

It is not a de Polignac number, because 4002205 - 2³ = 4002197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002209) 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, 400216 + ... + 400225.

It is an arithmetic number, because the mean of its divisors is an integer number (1200663).

Almost surely, 2^4002205 is an apocalyptic number.

It is an amenable number.

4002205 is a deficient number, since it is larger than the sum of its proper divisors (800447).

4002205 is an equidigital number, since it uses as much as digits as its factorization.

4002205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800446.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 4002205 is about 2000.5511740518. The cubic root of 4002205 is about 158.7692683331.

Adding to 4002205 its reverse (5022004), we get a palindrome (9024209).

The spelling of 4002205 in words is "four million, two thousand, two hundred five".