199287296 has 80 divisors (see below), whose sum is σ = 435388800. Its totient is φ = 90574848.

The previous prime is 199287271. The next prime is 199287317. The reversal of 199287296 is 692782991.

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, 525635 + ... + 526013.

It is an arithmetic number, because the mean of its divisors is an integer number (5442360).

Almost surely, 2^199287296 is an apocalyptic number.

199287296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199287296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217694400).

199287296 is an abundant number, since it is smaller than the sum of its proper divisors (236101504).

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

199287296 is an equidigital number, since it uses as much as digits as its factorization.

199287296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 473 counting only the distinct ones).

The product of its digits is 979776, while the sum is 53.

The square root of 199287296 is about 14116.9152437776. The cubic root of 199287296 is about 584.1080678224.

The spelling of 199287296 in words is "one hundred ninety-nine million, two hundred eighty-seven thousand, two hundred ninety-six".