305681936 has 20 divisors (see below), whose sum is σ = 676867392. Its totient is φ = 131006496.

The previous prime is 305681927. The next prime is 305681941. The reversal of 305681936 is 639186503.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 305681893 and 305681902.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1364540 + ... + 1364763.

Almost surely, 2^305681936 is an apocalyptic number.

It is an amenable number.

305681936 is an abundant number, since it is smaller than the sum of its proper divisors (371185456).

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

305681936 is a wasteful number, since it uses less digits than its factorization.

305681936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729318 (or 2729312 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 305681936 is about 17483.7620665576. The cubic root of 305681936 is about 673.6328513118.

The spelling of 305681936 in words is "three hundred five million, six hundred eighty-one thousand, nine hundred thirty-six".