199923282 has 96 divisors (see below), whose sum is σ = 506836800. Its totient is φ = 58226688.

The previous prime is 199923277. The next prime is 199923287. The reversal of 199923282 is 282329991.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (199923277) and next prime (199923287).

It is not an unprimeable number, because it can be changed into a prime (199923287) 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, 172818 + ... + 173970.

It is an arithmetic number, because the mean of its divisors is an integer number (5279550).

Almost surely, 2^199923282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199923282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253418400).

199923282 is an abundant number, since it is smaller than the sum of its proper divisors (306913518).

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

199923282 is a wasteful number, since it uses less digits than its factorization.

199923282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209 (or 1190 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 199923282 is about 14139.4229726676. The cubic root of 199923282 is about 584.7287631486.

It can be divided in two parts, 1999 and 23282, that added together give a square (25281 = 159²).

The spelling of 199923282 in words is "one hundred ninety-nine million, nine hundred twenty-three thousand, two hundred eighty-two".