305413205 has 16 divisors (see below), whose sum is σ = 388920960. Its totient is φ = 229741248.

The previous prime is 305413183. The next prime is 305413247. The reversal of 305413205 is 502314503.

It is a cyclic number.

It is not a de Polignac number, because 305413205 - 2¹⁰ = 305412181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15722 + ... + 29291.

It is an arithmetic number, because the mean of its divisors is an integer number (24307560).

Almost surely, 2^305413205 is an apocalyptic number.

It is an amenable number.

305413205 is a deficient number, since it is larger than the sum of its proper divisors (83507755).

305413205 is a wasteful number, since it uses less digits than its factorization.

305413205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45100.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 305413205 is about 17476.0752172792. The cubic root of 305413205 is about 673.4353921425.

Adding to 305413205 its reverse (502314503), we get a palindrome (807727708).

The spelling of 305413205 in words is "three hundred five million, four hundred thirteen thousand, two hundred five".