199550944 has 24 divisors (see below), whose sum is σ = 409948560. Its totient is φ = 95437056.

The previous prime is 199550927. The next prime is 199550951. The reversal of 199550944 is 449055991.

It is a happy number.

It is a super-2 number, since 2×199550944² = 79641158502582272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 199550894 and 199550903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134829 + ... + 136300.

It is an arithmetic number, because the mean of its divisors is an integer number (17081190).

Almost surely, 2^199550944 is an apocalyptic number.

It is an amenable number.

199550944 is an abundant number, since it is smaller than the sum of its proper divisors (210397616).

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

199550944 is a wasteful number, since it uses less digits than its factorization.

199550944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271162 (or 271154 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 46.

The square root of 199550944 is about 14126.2501747633. The cubic root of 199550944 is about 584.3655370902.

The spelling of 199550944 in words is "one hundred ninety-nine million, five hundred fifty thousand, nine hundred forty-four".