290930 has 16 divisors (see below), whose sum is σ = 535680. Its totient is φ = 113712.

The previous prime is 290923. The next prime is 290959. The reversal of 290930 is 39092.

290930 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 290896 and 290905.

It is an unprimeable number.

290930 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 7 ways as a sum of consecutive naturals, for example, 161 + ... + 779.

It is an arithmetic number, because the mean of its divisors is an integer number (33480).

2²⁹⁰⁹³⁰ is an apocalyptic number.

290930 is a deficient number, since it is larger than the sum of its proper divisors (244750).

290930 is a wasteful number, since it uses less digits than its factorization.

290930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 290930 is about 539.3792728684. The cubic root of 290930 is about 66.2617399392.

The spelling of 290930 in words is "two hundred ninety thousand, nine hundred thirty".