290269 has 4 divisors (see below), whose sum is σ = 331744. Its totient is φ = 248796.

The previous prime is 290249. The next prime is 290317. The reversal of 290269 is 962092.

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 a cyclic number.

It is not a de Polignac number, because 290269 - 2⁷ = 290141 is a prime.

It is a super-2 number, since 2×290269² = 168512184722, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290209) 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, 20727 + ... + 20740.

It is an arithmetic number, because the mean of its divisors is an integer number (82936).

2²⁹⁰²⁶⁹ is an apocalyptic number.

It is an amenable number.

290269 is a deficient number, since it is larger than the sum of its proper divisors (41475).

290269 is an equidigital number, since it uses as much as digits as its factorization.

290269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41474.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 290269 is about 538.7661830516. The cubic root of 290269 is about 66.2115191268.

The spelling of 290269 in words is "two hundred ninety thousand, two hundred sixty-nine".