1990976 has 28 divisors (see below), whose sum is σ = 4256532. Its totient is φ = 918528.

The previous prime is 1990973. The next prime is 1990981. The reversal of 1990976 is 6790991.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 141376 + 1849600 = 376^2 + 1360^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1990973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365 + ... + 2028.

It is an arithmetic number, because the mean of its divisors is an integer number (152019).

2^1990976 is an apocalyptic number.

1990976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1990976 is an abundant number, since it is smaller than the sum of its proper divisors (2265556).

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

1990976 is a wasteful number, since it uses less digits than its factorization.

1990976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418 (or 2408 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 1990976 is about 1411.0194895890. The cubic root of 1990976 is about 125.8023271509.

The spelling of 1990976 in words is "one million, nine hundred ninety thousand, nine hundred seventy-six".