199245436 has 12 divisors (see below), whose sum is σ = 375501112. Its totient is φ = 91959408.

The previous prime is 199245421. The next prime is 199245439. The reversal of 199245436 is 634542991.

It is a junction number, because it is equal to n+sod(n) for n = 199245392 and 199245401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199245439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1915770 + ... + 1915873.

Almost surely, 2^199245436 is an apocalyptic number.

It is an amenable number.

199245436 is a deficient number, since it is larger than the sum of its proper divisors (176255676).

199245436 is a wasteful number, since it uses less digits than its factorization.

199245436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831660 (or 3831658 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 199245436 is about 14115.4325473929. The cubic root of 199245436 is about 584.0671679485.

The spelling of 199245436 in words is "one hundred ninety-nine million, two hundred forty-five thousand, four hundred thirty-six".