198523036 has 24 divisors (see below), whose sum is σ = 355227264. Its totient is φ = 97049280.

The previous prime is 198522983. The next prime is 198523037. The reversal of 198523036 is 630325891.

It is a super-2 number, since 2×198523036² = 78822791645314592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 198522986 and 198523004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198523037) 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, 39861 + ... + 44563.

It is an arithmetic number, because the mean of its divisors is an integer number (14801136).

Almost surely, 2^198523036 is an apocalyptic number.

It is an amenable number.

198523036 is a deficient number, since it is larger than the sum of its proper divisors (156704228).

198523036 is a wasteful number, since it uses less digits than its factorization.

198523036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4941 (or 4939 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 198523036 is about 14089.8202969378. The cubic root of 198523036 is about 583.3604330993.

The spelling of 198523036 in words is "one hundred ninety-eight million, five hundred twenty-three thousand, thirty-six".