305185413 has 32 divisors (see below), whose sum is σ = 458954496. Its totient is φ = 178979328.

The previous prime is 305185399. The next prime is 305185417. The reversal of 305185413 is 314581503.

It is not a de Polignac number, because 305185413 - 2⁵ = 305185381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305185417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355681 + ... + 356537.

It is an arithmetic number, because the mean of its divisors is an integer number (14342328).

Almost surely, 2^305185413 is an apocalyptic number.

It is an amenable number.

305185413 is a deficient number, since it is larger than the sum of its proper divisors (153769083).

305185413 is a wasteful number, since it uses less digits than its factorization.

305185413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 305185413 is about 17469.5567488131. The cubic root of 305185413 is about 673.2679235604.

The spelling of 305185413 in words is "three hundred five million, one hundred eighty-five thousand, four hundred thirteen".