299490 has 32 divisors (see below), whose sum is σ = 734400. Its totient is φ = 78144.

The previous prime is 299479. The next prime is 299501. The reversal of 299490 is 94992.

299490 = 31² + 32² + ... + 97².

It is a happy number.

299490 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 (299479) and next prime (299501).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1936 + ... + 2084.

It is an arithmetic number, because the mean of its divisors is an integer number (22950).

2²⁹⁹⁴⁹⁰ is an apocalyptic number.

299490 is the 447-th pentagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 299490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367200).

299490 is an abundant number, since it is smaller than the sum of its proper divisors (434910).

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

299490 is a wasteful number, since it uses less digits than its factorization.

299490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 299490 is about 547.2567952981. The cubic root of 299490 is about 66.9053389578.

The spelling of 299490 in words is "two hundred ninety-nine thousand, four hundred ninety".