205412310 has 48 divisors (see below), whose sum is σ = 557298144. Its totient is φ = 52394496.

The previous prime is 205412303. The next prime is 205412321. The reversal of 205412310 is 13214502.

It is a super-2 number, since 2×205412310² = 84388434199072200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47547 + ... + 51686.

It is an arithmetic number, because the mean of its divisors is an integer number (11610378).

Almost surely, 2^205412310 is an apocalyptic number.

205412310 is an abundant number, since it is smaller than the sum of its proper divisors (351885834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205412310 is a wasteful number, since it uses less digits than its factorization.

205412310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99269 (or 99266 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 205412310 is about 14332.2123205038. The cubic root of 205412310 is about 590.0318952402.

Adding to 205412310 its reverse (13214502), we get a palindrome (218626812).

The spelling of 205412310 in words is "two hundred five million, four hundred twelve thousand, three hundred ten".