290942 has 4 divisors (see below), whose sum is σ = 436416. Its totient is φ = 145470.

The previous prime is 290923. The next prime is 290959. The reversal of 290942 is 249092.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 290942.

It is an unprimeable number.

290942 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72734 + ... + 72737.

It is an arithmetic number, because the mean of its divisors is an integer number (109104).

2²⁹⁰⁹⁴² is an apocalyptic number.

290942 is a deficient number, since it is larger than the sum of its proper divisors (145474).

290942 is a wasteful number, since it uses less digits than its factorization.

290942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145473.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 290942 is about 539.3903966516. The cubic root of 290942 is about 66.2626509601.

The spelling of 290942 in words is "two hundred ninety thousand, nine hundred forty-two".