290265 has 16 divisors (see below), whose sum is σ = 477888. Its totient is φ = 150336.

The previous prime is 290249. The next prime is 290317. The reversal of 290265 is 562092.

290265 = 6² + 7² + ... + 95².

It is not a de Polignac number, because 290265 - 2⁴ = 290249 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 290265.

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 15 ways as a sum of consecutive naturals, for example, 294 + ... + 816.

It is an arithmetic number, because the mean of its divisors is an integer number (29868).

2²⁹⁰²⁶⁵ is an apocalyptic number.

It is an amenable number.

290265 is a deficient number, since it is larger than the sum of its proper divisors (187623).

290265 is a wasteful number, since it uses less digits than its factorization.

290265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 290265 is about 538.7624708533. The cubic root of 290265 is about 66.2112149867.

It can be divided in two parts, 290 and 265, that added together give a palindrome (555).

The spelling of 290265 in words is "two hundred ninety thousand, two hundred sixty-five".