1899999982 has 8 divisors (see below), whose sum is σ = 2941935552. Its totient is φ = 919354800.

The previous prime is 1899999979. The next prime is 1900000043. The reversal of 1899999982 is 2899999981.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 15322519 + ... + 15322642.

It is an arithmetic number, because the mean of its divisors is an integer number (367741944).

Almost surely, 2^1899999982 is an apocalyptic number.

1899999982 is a deficient number, since it is larger than the sum of its proper divisors (1041935570).

1899999982 is a wasteful number, since it uses less digits than its factorization.

1899999982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30645194.

The product of its digits is 68024448, while the sum is 73.

The square root of 1899999982 is about 43588.9892289326. The cubic root of 1899999982 is about 1238.5623257189.

Subtracting 1899999982 from its reverse (2899999981), we obtain a palindrome (999999999).

It can be divided in two parts, 18 and 99999982, that added together give a 8-th power (100000000 = 10⁸).

The spelling of 1899999982 in words is "one billion, eight hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred eighty-two".