290478 has 8 divisors (see below), whose sum is σ = 580968. Its totient is φ = 96824.

The previous prime is 290473. The next prime is 290489. The reversal of 290478 is 874092.

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

290478 is an admirable number.

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 290478.

It is not an unprimeable number, because it can be changed into a prime (290471) 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 3 ways as a sum of consecutive naturals, for example, 24201 + ... + 24212.

It is an arithmetic number, because the mean of its divisors is an integer number (72621).

2²⁹⁰⁴⁷⁸ is an apocalyptic number.

290478 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.

290478 is a wasteful number, since it uses less digits than its factorization.

290478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48418.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 290478 is about 538.9601098412. The cubic root of 290478 is about 66.2274065594.

The spelling of 290478 in words is "two hundred ninety thousand, four hundred seventy-eight".