199441915 has 32 divisors (see below), whose sum is σ = 253808640. Its totient is φ = 150294144.

The previous prime is 199441883. The next prime is 199441933. The reversal of 199441915 is 519144991.

It is a cyclic number.

It is not a de Polignac number, because 199441915 - 2⁵ = 199441883 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 834366 + ... + 834604.

It is an arithmetic number, because the mean of its divisors is an integer number (7931520).

Almost surely, 2^199441915 is an apocalyptic number.

199441915 is a deficient number, since it is larger than the sum of its proper divisors (54366725).

199441915 is a wasteful number, since it uses less digits than its factorization.

199441915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411.

The product of its digits is 58320, while the sum is 43.

The square root of 199441915 is about 14122.3905554265. The cubic root of 199441915 is about 584.2590907596.

The spelling of 199441915 in words is "one hundred ninety-nine million, four hundred forty-one thousand, nine hundred fifteen".