2202905 has 4 divisors (see below), whose sum is σ = 2643492. Its totient is φ = 1762320.

The previous prime is 2202899. The next prime is 2202913. The reversal of 2202905 is 5092022.

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 1104601 + 1098304 = 1051^2 + 1048^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2202905 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220286 + ... + 220295.

It is an arithmetic number, because the mean of its divisors is an integer number (660873).

2^2202905 is an apocalyptic number.

It is an amenable number.

2202905 is a deficient number, since it is larger than the sum of its proper divisors (440587).

2202905 is an equidigital number, since it uses as much as digits as its factorization.

2202905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440586.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2202905 is about 1484.2186496605. The cubic root of 2202905 is about 130.1163652364.

Adding to 2202905 its reverse (5092022), we get a palindrome (7294927).

It can be divided in two parts, 220 and 2905, that added together give a 5-th power (3125 = 5⁵).

The spelling of 2202905 in words is "two million, two hundred two thousand, nine hundred five".