199488828 has 144 divisors (see below), whose sum is σ = 616098560. Its totient is φ = 49040640.

The previous prime is 199488823. The next prime is 199488841. The reversal of 199488828 is 828884991.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199488823) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 192600 + ... + 193632.

Almost surely, 2^199488828 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 199488828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308049280).

199488828 is an abundant number, since it is smaller than the sum of its proper divisors (416609732).

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

199488828 is a wasteful number, since it uses less digits than its factorization.

199488828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088 (or 1075 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 57.

The square root of 199488828 is about 14124.0514017756. The cubic root of 199488828 is about 584.3048972423.

The spelling of 199488828 in words is "one hundred ninety-nine million, four hundred eighty-eight thousand, eight hundred twenty-eight".