198969480 has 64 divisors (see below), whose sum is σ = 663235200. Its totient is φ = 53058240.

The previous prime is 198969467. The next prime is 198969487. The reversal of 198969480 is 84969891.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (198969487) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 91036 + ... + 93195.

It is an arithmetic number, because the mean of its divisors is an integer number (10363050).

Almost surely, 2^198969480 is an apocalyptic number.

198969480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198969480 is an abundant number, since it is smaller than the sum of its proper divisors (464265720).

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

198969480 is a wasteful number, since it uses less digits than its factorization.

198969480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184251 (or 184241 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 198969480 is about 14105.6541854676. The cubic root of 198969480 is about 583.7973979766.

The spelling of 198969480 in words is "one hundred ninety-eight million, nine hundred sixty-nine thousand, four hundred eighty".