198908976 has 160 divisors (see below), whose sum is σ = 629959680. Its totient is φ = 52789248.

The previous prime is 198908939. The next prime is 198908981. The reversal of 198908976 is 679809891.

198908976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 553885 + ... + 554243.

It is an arithmetic number, because the mean of its divisors is an integer number (3937248).

Almost surely, 2^198908976 is an apocalyptic number.

198908976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

198908976 is the 7539-th nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198908976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314979840).

198908976 is an abundant number, since it is smaller than the sum of its proper divisors (431050704).

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

198908976 is a wasteful number, since it uses less digits than its factorization.

198908976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 57.

The square root of 198908976 is about 14103.5093505127. The cubic root of 198908976 is about 583.7382169426.

The spelling of 198908976 in words is "one hundred ninety-eight million, nine hundred eight thousand, nine hundred seventy-six".