1990958276 has 12 divisors (see below), whose sum is σ = 3518004672. Its totient is φ = 985814088.

The previous prime is 1990958251. The next prime is 1990958293. The reversal of 1990958276 is 6728590991.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2415800 + ... + 2416623.

It is an arithmetic number, because the mean of its divisors is an integer number (293167056).

Almost surely, 2^1990958276 is an apocalyptic number.

It is an amenable number.

1990958276 is a deficient number, since it is larger than the sum of its proper divisors (1527046396).

1990958276 is a wasteful number, since it uses less digits than its factorization.

1990958276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832530 (or 4832528 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 56.

The square root of 1990958276 is about 44620.1554905404. The cubic root of 1990958276 is about 1258.0195384535.

The spelling of 1990958276 in words is "one billion, nine hundred ninety million, nine hundred fifty-eight thousand, two hundred seventy-six".