198923516 has 18 divisors (see below), whose sum is σ = 382641000. Its totient is φ = 90419560.

The previous prime is 198923503. The next prime is 198923539. The reversal of 198923516 is 615329891.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 205016 + ... + 205983.

Almost surely, 2^198923516 is an apocalyptic number.

It is an amenable number.

198923516 is a deficient number, since it is larger than the sum of its proper divisors (183717484).

198923516 is a wasteful number, since it uses less digits than its factorization.

198923516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411025 (or 411012 counting only the distinct ones).

The product of its digits is 116640, while the sum is 44.

The square root of 198923516 is about 14104.0248156333. The cubic root of 198923516 is about 583.7524401098.

The spelling of 198923516 in words is "one hundred ninety-eight million, nine hundred twenty-three thousand, five hundred sixteen".