199242452 has 24 divisors (see below), whose sum is σ = 358576512. Its totient is φ = 96811200.

The previous prime is 199242443. The next prime is 199242457. The reversal of 199242452 is 254242991.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199242457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42203 + ... + 46685.

It is an arithmetic number, because the mean of its divisors is an integer number (14940688).

Almost surely, 2^199242452 is an apocalyptic number.

It is an amenable number.

199242452 is a deficient number, since it is larger than the sum of its proper divisors (159334060).

199242452 is a wasteful number, since it uses less digits than its factorization.

199242452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4799 (or 4797 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 199242452 is about 14115.3268470836. The cubic root of 199242452 is about 584.0642521725.

It can be divided in two parts, 1992 and 42452, that added together give a palindrome (44444).

The spelling of 199242452 in words is "one hundred ninety-nine million, two hundred forty-two thousand, four hundred fifty-two".