306922 has 16 divisors (see below), whose sum is σ = 574272. Its totient is φ = 119520.

The previous prime is 306919. The next prime is 306941. The reversal of 306922 is 229603.

It is a super-2 number, since 2×306922² = 188402228168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 306893 and 306902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843 + ... + 1150.

It is an arithmetic number, because the mean of its divisors is an integer number (35892).

2³⁰⁶⁹²² is an apocalyptic number.

306922 is a deficient number, since it is larger than the sum of its proper divisors (267350).

306922 is a wasteful number, since it uses less digits than its factorization.

306922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 306922 is about 554.0054151360. The cubic root of 306922 is about 67.4542534112.

The spelling of 306922 in words is "three hundred six thousand, nine hundred twenty-two".