1982891992 has 16 divisors (see below), whose sum is σ = 3768854040. Its totient is φ = 977864256.

The previous prime is 1982891987. The next prime is 1982892013. The reversal of 1982891992 is 2991982891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1697098 + ... + 1698265.

Almost surely, 2^1982891992 is an apocalyptic number.

It is an amenable number.

1982891992 is a deficient number, since it is larger than the sum of its proper divisors (1785962048).

1982891992 is a wasteful number, since it uses less digits than its factorization.

1982891992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395442 (or 3395438 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 58.

The square root of 1982891992 is about 44529.6754086530. The cubic root of 1982891992 is about 1256.3183010743.

The spelling of 1982891992 in words is "one billion, nine hundred eighty-two million, eight hundred ninety-one thousand, nine hundred ninety-two".