198650880 has 220 divisors, whose sum is σ = 713338560. Its totient is φ = 52862976.

The previous prime is 198650873. The next prime is 198650923. The reversal of 198650880 is 88056891.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 414481 + ... + 414959.

It is an arithmetic number, because the mean of its divisors is an integer number (3242448).

Almost surely, 2^198650880 is an apocalyptic number.

198650880 is a gapful number since it is divisible by the number (10) 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 198650880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356669280).

198650880 is an abundant number, since it is smaller than the sum of its proper divisors (514687680).

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

198650880 is an equidigital number, since it uses as much as digits as its factorization.

198650880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 198650880 is about 14094.3563173350. The cubic root of 198650880 is about 583.4856295322.

The spelling of 198650880 in words is "one hundred ninety-eight million, six hundred fifty thousand, eight hundred eighty".