199038984 has 128 divisors (see below), whose sum is σ = 551577600. Its totient is φ = 59616000.

The previous prime is 199038979. The next prime is 199039039. The reversal of 199038984 is 489830991.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 792859 + ... + 793109.

It is an arithmetic number, because the mean of its divisors is an integer number (4309200).

Almost surely, 2^199038984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199038984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275788800).

199038984 is an abundant number, since it is smaller than the sum of its proper divisors (352538616).

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

199038984 is a wasteful number, since it uses less digits than its factorization.

199038984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 199038984 is about 14108.1176632462. The cubic root of 199038984 is about 583.8653674136.

The spelling of 199038984 in words is "one hundred ninety-nine million, thirty-eight thousand, nine hundred eighty-four".