199648450 has 24 divisors (see below), whose sum is σ = 376583040. Its totient is φ = 78733200.

The previous prime is 199648429. The next prime is 199648453. The reversal of 199648450 is 54846991.

It is a happy number.

199648450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 199648450.

It is not an unprimeable number, because it can be changed into a prime (199648453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24570 + ... + 31669.

It is an arithmetic number, because the mean of its divisors is an integer number (15690960).

Almost surely, 2^199648450 is an apocalyptic number.

199648450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199648450 is a deficient number, since it is larger than the sum of its proper divisors (176934590).

199648450 is a wasteful number, since it uses less digits than its factorization.

199648450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56322 (or 56317 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 199648450 is about 14129.7009876359. The cubic root of 199648450 is about 584.4607005389.

It can be divided in two parts, 19 and 9648450, that added together give a palindrome (9648469).

The spelling of 199648450 in words is "one hundred ninety-nine million, six hundred forty-eight thousand, four hundred fifty".