199575950 has 24 divisors (see below), whose sum is σ = 424242192. Its totient is φ = 68425920.

The previous prime is 199575949. The next prime is 199575977. The reversal of 199575950 is 59575991.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284759 + ... + 285458.

It is an arithmetic number, because the mean of its divisors is an integer number (17676758).

Almost surely, 2^199575950 is an apocalyptic number.

199575950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199575950 is an abundant number, since it is smaller than the sum of its proper divisors (224666242).

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

199575950 is a wasteful number, since it uses less digits than its factorization.

199575950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570236 (or 570231 counting only the distinct ones).

The product of its (nonzero) digits is 637875, while the sum is 50.

The square root of 199575950 is about 14127.1352368412. The cubic root of 199575950 is about 584.3899452839.

The spelling of 199575950 in words is "one hundred ninety-nine million, five hundred seventy-five thousand, nine hundred fifty".