205214404 has 12 divisors (see below), whose sum is σ = 367477264. Its totient is φ = 100220904.

The previous prime is 205214377. The next prime is 205214407. The reversal of 205214404 is 404412502.

It is a happy number.

It is a super-2 number, since 2×205214404² = 84225903218150432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (205214407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596382 + ... + 596725.

Almost surely, 2^205214404 is an apocalyptic number.

It is an amenable number.

205214404 is a deficient number, since it is larger than the sum of its proper divisors (162262860).

205214404 is a wasteful number, since it uses less digits than its factorization.

205214404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193154 (or 1193152 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 205214404 is about 14325.3064190613. The cubic root of 205214404 is about 589.8423441635.

Adding to 205214404 its reverse (404412502), we get a palindrome (609626906).

The spelling of 205214404 in words is "two hundred five million, two hundred fourteen thousand, four hundred four".