290442 has 8 divisors (see below), whose sum is σ = 580896. Its totient is φ = 96812.

The previous prime is 290441. The next prime is 290443. The reversal of 290442 is 244092.

290442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (290441) and next prime (290443).

It is a sphenic number, since it is the product of 3 distinct primes.

290442 is an admirable number.

It is a plaindrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 290442.

It is not an unprimeable number, because it can be changed into a prime (290441) 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, 24198 + ... + 24209.

It is an arithmetic number, because the mean of its divisors is an integer number (72612).

2²⁹⁰⁴⁴² is an apocalyptic number.

290442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

290442 is a wasteful number, since it uses less digits than its factorization.

290442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48412.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 290442 is about 538.9267111584. The cubic root of 290442 is about 66.2246705116.

The spelling of 290442 in words is "two hundred ninety thousand, four hundred forty-two".