199055910 has 32 divisors (see below), whose sum is σ = 478397952. Its totient is φ = 53007840.

The previous prime is 199055897. The next prime is 199055933. The reversal of 199055910 is 19550991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19395 + ... + 27825.

It is an arithmetic number, because the mean of its divisors is an integer number (14949936).

Almost surely, 2^199055910 is an apocalyptic number.

199055910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199055910 is an abundant number, since it is smaller than the sum of its proper divisors (279342042).

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

199055910 is a wasteful number, since it uses less digits than its factorization.

199055910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9228.

The product of its (nonzero) digits is 18225, while the sum is 39.

The square root of 199055910 is about 14108.7175179036. The cubic root of 199055910 is about 583.8819173123.

The spelling of 199055910 in words is "one hundred ninety-nine million, fifty-five thousand, nine hundred ten".