308946 has 32 divisors (see below), whose sum is σ = 700416. Its totient is φ = 90000.

The previous prime is 308939. The next prime is 308951. The reversal of 308946 is 649803.

308946 is nontrivially palindromic in base 15.

It is a nialpdrome in base 13.

It is a zygodrome in base 8.

It is an unprimeable number.

308946 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1971 + ... + 2121.

It is an arithmetic number, because the mean of its divisors is an integer number (21888).

2³⁰⁸⁹⁴⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 308946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350208).

308946 is an abundant number, since it is smaller than the sum of its proper divisors (391470).

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

308946 is a wasteful number, since it uses less digits than its factorization.

308946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 308946 is about 555.8291104287. The cubic root of 308946 is about 67.6022045661.

The spelling of 308946 in words is "three hundred eight thousand, nine hundred forty-six".