298945 has 8 divisors (see below), whose sum is σ = 379944. Its totient is φ = 225024.

The previous prime is 298943. The next prime is 298993. The reversal of 298945 is 549892.

It can be written as a sum of positive squares in 4 ways, for example, as 142129 + 156816 = 377^2 + 396^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 298945 - 2¹ = 298943 is a prime.

It is a super-2 number, since 2×298945² = 178736226050, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

298945 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (298943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1674 + ... + 1843.

It is an arithmetic number, because the mean of its divisors is an integer number (47493).

2²⁹⁸⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

298945 is a deficient number, since it is larger than the sum of its proper divisors (80999).

298945 is a wasteful number, since it uses less digits than its factorization.

298945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3539.

The product of its digits is 25920, while the sum is 37.

The square root of 298945 is about 546.7586304760. The cubic root of 298945 is about 66.8647304229.

The spelling of 298945 in words is "two hundred ninety-eight thousand, nine hundred forty-five".