199088028 has 36 divisors (see below), whose sum is σ = 503678448. Its totient is φ = 66306240.

The previous prime is 199088011. The next prime is 199088039. The reversal of 199088028 is 820880991.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82000 + ... + 84392.

It is an arithmetic number, because the mean of its divisors is an integer number (13991068).

Almost surely, 2^199088028 is an apocalyptic number.

199088028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

199088028 is an abundant number, since it is smaller than the sum of its proper divisors (304590420).

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

199088028 is a wasteful number, since it uses less digits than its factorization.

199088028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4714 (or 4709 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The square root of 199088028 is about 14109.8557044358. The cubic root of 199088028 is about 583.9133190608.

The spelling of 199088028 in words is "one hundred ninety-nine million, eighty-eight thousand, twenty-eight".