290516 has 12 divisors (see below), whose sum is σ = 517440. Its totient is φ = 142680.

The previous prime is 290509. The next prime is 290527. The reversal of 290516 is 615092.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 290491 and 290500.

It is a congruent number.

It is an unprimeable number.

290516 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 3 ways as a sum of consecutive naturals, for example, 380 + ... + 851.

It is an arithmetic number, because the mean of its divisors is an integer number (43120).

290516 is a Friedman number, since it can be written as (60*9-1)^2-5, using all its digits and the basic arithmetic operations.

2²⁹⁰⁵¹⁶ is an apocalyptic number.

It is an amenable number.

290516 is a deficient number, since it is larger than the sum of its proper divisors (226924).

290516 is a wasteful number, since it uses less digits than its factorization.

290516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294 (or 1292 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 290516 is about 538.9953617611. The cubic root of 290516 is about 66.2302943647.

The spelling of 290516 in words is "two hundred ninety thousand, five hundred sixteen".