198252680 has 32 divisors (see below), whose sum is σ = 446788440. Its totient is φ = 79173120.

The previous prime is 198252667. The next prime is 198252713. The reversal of 198252680 is 86252891.

It can be written as a sum of positive squares in 4 ways, for example, as 153710404 + 44542276 = 12398^2 + 6674^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23420 + ... + 30740.

Almost surely, 2^198252680 is an apocalyptic number.

198252680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198252680 is an abundant number, since it is smaller than the sum of its proper divisors (248535760).

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

198252680 is a wasteful number, since it uses less digits than its factorization.

198252680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8009 (or 8005 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 198252680 is about 14080.2230095975. The cubic root of 198252680 is about 583.0954988719.

The spelling of 198252680 in words is "one hundred ninety-eight million, two hundred fifty-two thousand, six hundred eighty".