205412306 has 16 divisors (see below), whose sum is σ = 353820960. Its totient is φ = 88454880.

The previous prime is 205412303. The next prime is 205412321. The reversal of 205412306 is 603214502.

205412306 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (205412303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245291 + ... + 246126.

It is an arithmetic number, because the mean of its divisors is an integer number (22113810).

Almost surely, 2^205412306 is an apocalyptic number.

205412306 is a deficient number, since it is larger than the sum of its proper divisors (148408654).

205412306 is a wasteful number, since it uses less digits than its factorization.

205412306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491449.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 205412306 is about 14332.2121809580. The cubic root of 205412306 is about 590.0318914103.

Adding to 205412306 its reverse (603214502), we get a palindrome (808626808).

The spelling of 205412306 in words is "two hundred five million, four hundred twelve thousand, three hundred six".