305307086 has 48 divisors (see below), whose sum is σ = 557015904. Its totient is φ = 122923008.

The previous prime is 305307077. The next prime is 305307089. The reversal of 305307086 is 680703503.

It is a happy number.

It is a super-2 number, since 2×305307086² = 186424833523622792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305307089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 975266 + ... + 975578.

It is an arithmetic number, because the mean of its divisors is an integer number (11604498).

Almost surely, 2^305307086 is an apocalyptic number.

305307086 is a deficient number, since it is larger than the sum of its proper divisors (251708818).

305307086 is a wasteful number, since it uses less digits than its factorization.

305307086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 305307086 is about 17473.0388312966. The cubic root of 305307086 is about 673.3573857260.

The spelling of 305307086 in words is "three hundred five million, three hundred seven thousand, eighty-six".