290169 has 16 divisors (see below), whose sum is σ = 469440. Its totient is φ = 175680.

The previous prime is 290161. The next prime is 290183. The reversal of 290169 is 961092.

It is a happy number.

It is not a de Polignac number, because 290169 - 2³ = 290161 is a prime.

It is a super-2 number, since 2×290169² = 168396097122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

290169 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (290161) by changing a digit.

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, 192 + ... + 785.

It is an arithmetic number, because the mean of its divisors is an integer number (29340).

2²⁹⁰¹⁶⁹ is an apocalyptic number.

It is an amenable number.

290169 is a deficient number, since it is larger than the sum of its proper divisors (179271).

290169 is a wasteful number, since it uses less digits than its factorization.

290169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 290169 is about 538.6733704203. The cubic root of 290169 is about 66.2039147869.

The spelling of 290169 in words is "two hundred ninety thousand, one hundred sixty-nine".