492990 has 16 divisors (see below), whose sum is σ = 1183248. Its totient is φ = 131456.

The previous prime is 492979. The next prime is 493001. The reversal of 492990 is 99294.

492990 = 312² + 313² + ... + 316².

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (492979) and next prime (493001).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8187 + ... + 8246.

It is an arithmetic number, because the mean of its divisors is an integer number (73953).

2⁴⁹²⁹⁹⁰ is an apocalyptic number.

492990 is an abundant number, since it is smaller than the sum of its proper divisors (690258).

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

492990 is a wasteful number, since it uses less digits than its factorization.

492990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16443.

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

The square root of 492990 is about 702.1324661344. The cubic root of 492990 is about 78.9973828113.

The spelling of 492990 in words is "four hundred ninety-two thousand, nine hundred ninety".