1990276 has 12 divisors (see below), whose sum is σ = 3503500. Its totient is φ = 989280.

The previous prime is 1990273. The next prime is 1990277. The reversal of 1990276 is 6720991.

It can be written as a sum of positive squares in 2 ways, for example, as 102400 + 1887876 = 320^2 + 1374^2 .

It is a super-2 number, since 2×1990276² = 7922397112352, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1990273) 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 3 ways as a sum of consecutive naturals, for example, 651 + ... + 2098.

2^1990276 is an apocalyptic number.

It is an amenable number.

1990276 is a deficient number, since it is larger than the sum of its proper divisors (1513224).

1990276 is a wasteful number, since it uses less digits than its factorization.

1990276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2934 (or 2932 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 1990276 is about 1410.7714201812. The cubic root of 1990276 is about 125.7875819620.

The spelling of 1990276 in words is "one million, nine hundred ninety thousand, two hundred seventy-six".