290888 has 16 divisors (see below), whose sum is σ = 587580. Its totient is φ = 134208.

The previous prime is 290879. The next prime is 290897. The reversal of 290888 is 888092.

290888 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 (290879) and next prime (290897).

It can be written as a sum of positive squares in 2 ways, for example, as 289444 + 1444 = 538^2 + 38^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is an unprimeable number.

290888 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 in 3 ways as a sum of consecutive naturals, for example, 1295 + ... + 1502.

2²⁹⁰⁸⁸⁸ is an apocalyptic number.

It is an amenable number.

290888 is an abundant number, since it is smaller than the sum of its proper divisors (296692).

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

290888 is a wasteful number, since it uses less digits than its factorization.

290888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816 (or 2812 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 290888 is about 539.3403378202. The cubic root of 290888 is about 66.2585511687.

The spelling of 290888 in words is "two hundred ninety thousand, eight hundred eighty-eight".