199540036 has 24 divisors (see below), whose sum is σ = 352628864. Its totient is φ = 98794080.

The previous prime is 199540031. The next prime is 199540063. The reversal of 199540036 is 630045991.

It is a junction number, because it is equal to n+sod(n) for n = 199539977 and 199540004.

It is not an unprimeable number, because it can be changed into a prime (199540031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301546 + ... + 302206.

Almost surely, 2^199540036 is an apocalyptic number.

It is an amenable number.

199540036 is a deficient number, since it is larger than the sum of its proper divisors (153088828).

199540036 is a wasteful number, since it uses less digits than its factorization.

199540036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291 (or 1289 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 199540036 is about 14125.8640797652. The cubic root of 199540036 is about 584.3548892237.

The spelling of 199540036 in words is "one hundred ninety-nine million, five hundred forty thousand, thirty-six".