298390 has 16 divisors (see below), whose sum is σ = 548208. Its totient is φ = 116896.

The previous prime is 298373. The next prime is 298399. The reversal of 298390 is 93892.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298399) by changing a digit.

298390 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 7 ways as a sum of consecutive naturals, for example, 249 + ... + 811.

It is an arithmetic number, because the mean of its divisors is an integer number (34263).

2²⁹⁸³⁹⁰ is an apocalyptic number.

298390 is a deficient number, since it is larger than the sum of its proper divisors (249818).

298390 is a wasteful number, since it uses less digits than its factorization.

298390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 298390 is about 546.2508581229. The cubic root of 298390 is about 66.8233260238.

The spelling of 298390 in words is "two hundred ninety-eight thousand, three hundred ninety".