305438196 has 24 divisors (see below), whose sum is σ = 814502080. Its totient is φ = 87268032.

The previous prime is 305438173. The next prime is 305438251. The reversal of 305438196 is 691834503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1818001 + ... + 1818168.

Almost surely, 2^305438196 is an apocalyptic number.

It is an amenable number.

305438196 is an abundant number, since it is smaller than the sum of its proper divisors (509063884).

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

305438196 is a wasteful number, since it uses less digits than its factorization.

305438196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3636183 (or 3636181 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 305438196 is about 17476.7902087311. The cubic root of 305438196 is about 673.4537600067.

The spelling of 305438196 in words is "three hundred five million, four hundred thirty-eight thousand, one hundred ninety-six".