1998995852 has 24 divisors (see below), whose sum is σ = 4208413440. Its totient is φ = 811622160.

The previous prime is 1998995837. The next prime is 1998995863. The reversal of 1998995852 is 2585998991.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1878224 + ... + 1879287.

It is an arithmetic number, because the mean of its divisors is an integer number (175350560).

Almost surely, 2^1998995852 is an apocalyptic number.

It is an amenable number.

1998995852 is an abundant number, since it is smaller than the sum of its proper divisors (2209417588).

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

1998995852 is a wasteful number, since it uses less digits than its factorization.

1998995852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757541 (or 3757539 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 65.

The square root of 1998995852 is about 44710.1314245440. The cubic root of 1998995852 is about 1259.7101567292.

The spelling of 1998995852 in words is "one billion, nine hundred ninety-eight million, nine hundred ninety-five thousand, eight hundred fifty-two".