199801792 has 28 divisors (see below), whose sum is σ = 397165576. Its totient is φ = 99728640.

The previous prime is 199801787. The next prime is 199801801. The reversal of 199801792 is 297108991.

It is a happy number.

It is a super-2 number, since 2×199801792² = 79841512172822528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39943 + ... + 44665.

Almost surely, 2^199801792 is an apocalyptic number.

It is an amenable number.

199801792 is a deficient number, since it is larger than the sum of its proper divisors (197363784).

199801792 is an equidigital number, since it uses as much as digits as its factorization.

199801792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5396 (or 5386 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 46.

The square root of 199801792 is about 14135.1261755953. The cubic root of 199801792 is about 584.6102958858.

The spelling of 199801792 in words is "one hundred ninety-nine million, eight hundred one thousand, seven hundred ninety-two".