199766452 has 24 divisors (see below), whose sum is σ = 355380480. Its totient is φ = 98236320.

The previous prime is 199766447. The next prime is 199766453. The reversal of 199766452 is 254667991.

It is a happy number.

199766452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 199766396 and 199766405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199766453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191749 + ... + 192787.

It is an arithmetic number, because the mean of its divisors is an integer number (14807520).

Almost surely, 2^199766452 is an apocalyptic number.

It is an amenable number.

199766452 is a deficient number, since it is larger than the sum of its proper divisors (155614028).

199766452 is a wasteful number, since it uses less digits than its factorization.

199766452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791 (or 1789 counting only the distinct ones).

The product of its digits is 816480, while the sum is 49.

The square root of 199766452 is about 14133.8760430393. The cubic root of 199766452 is about 584.5758261482.

The spelling of 199766452 in words is "one hundred ninety-nine million, seven hundred sixty-six thousand, four hundred fifty-two".