198036836 has 6 divisors (see below), whose sum is σ = 346564470. Its totient is φ = 99018416.

The previous prime is 198036827. The next prime is 198036857. The reversal of 198036836 is 638630891.

It can be written as a sum of positive squares in only one way, i.e., 140185600 + 57851236 = 11840^2 + 7606^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24754601 + ... + 24754608.

It is an arithmetic number, because the mean of its divisors is an integer number (57760745).

Almost surely, 2^198036836 is an apocalyptic number.

It is an amenable number.

198036836 is a deficient number, since it is larger than the sum of its proper divisors (148527634).

198036836 is a wasteful number, since it uses less digits than its factorization.

198036836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49509213 (or 49509211 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 198036836 is about 14072.5561288630. The cubic root of 198036836 is about 582.8838104892.

The spelling of 198036836 in words is "one hundred ninety-eight million, thirty-six thousand, eight hundred thirty-six".