306860 has 24 divisors (see below), whose sum is σ = 656880. Its totient is φ = 120384.

The previous prime is 306857. The next prime is 306871. The reversal of 306860 is 68603.

306860 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

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, 1226 + ... + 1454.

It is an arithmetic number, because the mean of its divisors is an integer number (27370).

2³⁰⁶⁸⁶⁰ is an apocalyptic number.

It is an amenable number.

306860 is an abundant number, since it is smaller than the sum of its proper divisors (350020).

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

306860 is a wasteful number, since it uses less digits than its factorization.

306860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 306860 is about 553.9494561781. The cubic root of 306860 is about 67.4497110569.

The spelling of 306860 in words is "three hundred six thousand, eight hundred sixty".