990274 has 8 divisors (see below), whose sum is σ = 1509948. Its totient is φ = 486960.

The previous prime is 990259. The next prime is 990277. The reversal of 990274 is 472099.

It can be written as a sum of positive squares in 2 ways, for example, as 986049 + 4225 = 993^2 + 65^2 .

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

It is not an unprimeable number, because it can be changed into a prime (990277) by changing a digit.

990274 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 3 ways as a sum of consecutive naturals, for example, 3937 + ... + 4180.

2⁹⁹⁰²⁷⁴ is an apocalyptic number.

990274 is a deficient number, since it is larger than the sum of its proper divisors (519674).

990274 is a wasteful number, since it uses less digits than its factorization.

990274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8180.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 990274 is about 995.1251177616. The cubic root of 990274 is about 99.6747432273.

The spelling of 990274 in words is "nine hundred ninety thousand, two hundred seventy-four".