990374 has 32 divisors (see below), whose sum is σ = 1900800. Its totient is φ = 375840.

The previous prime is 990371. The next prime is 990377. The reversal of 990374 is 473099.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (990371) and next prime (990377).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 990374.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9032 + ... + 9140.

It is an arithmetic number, because the mean of its divisors is an integer number (59400).

2⁹⁹⁰³⁷⁴ is an apocalyptic number.

990374 is a deficient number, since it is larger than the sum of its proper divisors (910426).

990374 is a wasteful number, since it uses less digits than its factorization.

990374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 990374 is about 995.1753614313. The cubic root of 990374 is about 99.6780982377.

The spelling of 990374 in words is "nine hundred ninety thousand, three hundred seventy-four".