290469 has 4 divisors (see below), whose sum is σ = 387296. Its totient is φ = 193644.

The previous prime is 290447. The next prime is 290471. The reversal of 290469 is 964092.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 290469 - 2⁹ = 289957 is a prime.

It is a super-2 number, since 2×290469² = 168744479922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48409 + ... + 48414.

It is an arithmetic number, because the mean of its divisors is an integer number (96824).

2²⁹⁰⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

290469 is a deficient number, since it is larger than the sum of its proper divisors (96827).

290469 is an equidigital number, since it uses as much as digits as its factorization.

290469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96826.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 290469 is about 538.9517603645. The cubic root of 290469 is about 66.2267225687.

The spelling of 290469 in words is "two hundred ninety thousand, four hundred sixty-nine".