198948938 has 12 divisors (see below), whose sum is σ = 303553302. Its totient is φ = 97767120.

The previous prime is 198948907. The next prime is 198948941. The reversal of 198948938 is 839849891.

It can be written as a sum of positive squares in 3 ways, for example, as 147209689 + 51739249 = 12133^2 + 7193^2 .

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, 155156 + ... + 156432.

Almost surely, 2^198948938 is an apocalyptic number.

198948938 is a deficient number, since it is larger than the sum of its proper divisors (104604364).

198948938 is an frugal number, since it uses more digits than its factorization.

198948938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617 (or 1340 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 59.

The square root of 198948938 is about 14104.9260189481. The cubic root of 198948938 is about 583.7773064884. Note that the first 3 decimals are identical.

The spelling of 198948938 in words is "one hundred ninety-eight million, nine hundred forty-eight thousand, nine hundred thirty-eight".