990241 has 8 divisors (see below), whose sum is σ = 1155200. Its totient is φ = 848484.

The previous prime is 990239. The next prime is 990259. The reversal of 990241 is 142099.

It is not a de Polignac number, because 990241 - 2¹ = 990239 is a prime.

It is a Duffinian number.

990241 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990211) 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, 1101 + ... + 1786.

It is an arithmetic number, because the mean of its divisors is an integer number (144400).

2⁹⁹⁰²⁴¹ is an apocalyptic number.

It is an amenable number.

990241 is a deficient number, since it is larger than the sum of its proper divisors (164959).

990241 is an equidigital number, since it uses as much as digits as its factorization.

990241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908 (or 2894 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 990241 is about 995.1085367939. The cubic root of 990241 is about 99.6736360243.

The spelling of 990241 in words is "nine hundred ninety thousand, two hundred forty-one".