199450380 has 48 divisors (see below), whose sum is σ = 563603040. Its totient is φ = 52697088.

The previous prime is 199450379. The next prime is 199450397. The reversal of 199450380 is 83054991.

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, 8709 + ... + 21788.

It is an arithmetic number, because the mean of its divisors is an integer number (11741730).

Almost surely, 2^199450380 is an apocalyptic number.

199450380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199450380 is an abundant number, since it is smaller than the sum of its proper divisors (364152660).

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

199450380 is a wasteful number, since it uses less digits than its factorization.

199450380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30618 (or 30616 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 199450380 is about 14122.6902536309. The cubic root of 199450380 is about 584.2673566303.

The spelling of 199450380 in words is "one hundred ninety-nine million, four hundred fifty thousand, three hundred eighty".