199185072 has 40 divisors (see below), whose sum is σ = 515108400. Its totient is φ = 66324480.

The previous prime is 199185061. The next prime is 199185089. The reversal of 199185072 is 270581991.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63804 + ... + 66852.

It is an arithmetic number, because the mean of its divisors is an integer number (12877710).

Almost surely, 2^199185072 is an apocalyptic number.

199185072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

199185072 is an abundant number, since it is smaller than the sum of its proper divisors (315923328).

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

199185072 is a wasteful number, since it uses less digits than its factorization.

199185072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4421 (or 4415 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 42.

The square root of 199185072 is about 14113.2941583459. The cubic root of 199185072 is about 584.0081784055.

The spelling of 199185072 in words is "one hundred ninety-nine million, one hundred eighty-five thousand, seventy-two".