305896 has 8 divisors (see below), whose sum is σ = 573570. Its totient is φ = 152944.

The previous prime is 305873. The next prime is 305917. The reversal of 305896 is 698503.

It can be written as a sum of positive squares in only one way, i.e., 260100 + 45796 = 510^2 + 214^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19111 + ... + 19126.

2³⁰⁵⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

305896 is a deficient number, since it is larger than the sum of its proper divisors (267674).

305896 is a wasteful number, since it uses less digits than its factorization.

305896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38243 (or 38239 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 305896 is about 553.0786562506. The cubic root of 305896 is about 67.3790059266.

The spelling of 305896 in words is "three hundred five thousand, eight hundred ninety-six".