198494976 has 144 divisors (see below), whose sum is σ = 567741440. Its totient is φ = 61378560.

The previous prime is 198494971. The next prime is 198494993. The reversal of 198494976 is 679494891.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (198494971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 890001 + ... + 890223.

Almost surely, 2^198494976 is an apocalyptic number.

198494976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198494976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283870720).

198494976 is an abundant number, since it is smaller than the sum of its proper divisors (369246464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198494976 is a wasteful number, since it uses less digits than its factorization.

198494976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 308 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 57.

The square root of 198494976 is about 14088.8245073888. The cubic root of 198494976 is about 583.3329470111.

The spelling of 198494976 in words is "one hundred ninety-eight million, four hundred ninety-four thousand, nine hundred seventy-six".