199969672 has 16 divisors (see below), whose sum is σ = 428506560. Its totient is φ = 85701264.

The previous prime is 199969639. The next prime is 199969673. The reversal of 199969672 is 276969991.

It is not an unprimeable number, because it can be changed into a prime (199969673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1785388 + ... + 1785499.

It is an arithmetic number, because the mean of its divisors is an integer number (26781660).

Almost surely, 2^199969672 is an apocalyptic number.

It is an amenable number.

199969672 is an abundant number, since it is smaller than the sum of its proper divisors (228536888).

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

199969672 is a wasteful number, since it uses less digits than its factorization.

199969672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3570900 (or 3570896 counting only the distinct ones).

The product of its digits is 3306744, while the sum is 58.

The square root of 199969672 is about 14141.0633263556. The cubic root of 199969672 is about 584.7739862783.

The spelling of 199969672 in words is "one hundred ninety-nine million, nine hundred sixty-nine thousand, six hundred seventy-two".