198505960 has 16 divisors (see below), whose sum is σ = 446638500. Its totient is φ = 79402368.

The previous prime is 198505949. The next prime is 198505973. The reversal of 198505960 is 69505891.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 192265956 + 6240004 = 13866^2 + 2498^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2481285 + ... + 2481364.

Almost surely, 2^198505960 is an apocalyptic number.

198505960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198505960 is an abundant number, since it is smaller than the sum of its proper divisors (248132540).

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

198505960 is a wasteful number, since it uses less digits than its factorization.

198505960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4962660 (or 4962656 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 198505960 is about 14089.2143145031. The cubic root of 198505960 is about 583.3437066636.

The spelling of 198505960 in words is "one hundred ninety-eight million, five hundred five thousand, nine hundred sixty".