198513984 has 28 divisors (see below), whose sum is σ = 525235424. Its totient is φ = 66171264.

The previous prime is 198513977. The next prime is 198514003. The reversal of 198513984 is 489315891.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516772 + ... + 517155.

It is an arithmetic number, because the mean of its divisors is an integer number (18758408).

Almost surely, 2^198513984 is an apocalyptic number.

It is an amenable number.

198513984 is an abundant number, since it is smaller than the sum of its proper divisors (326721440).

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

198513984 is a wasteful number, since it uses less digits than its factorization.

198513984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033942 (or 1033932 counting only the distinct ones).

The product of its digits is 311040, while the sum is 48.

The square root of 198513984 is about 14089.4990684552. The cubic root of 198513984 is about 583.3515665231.

The spelling of 198513984 in words is "one hundred ninety-eight million, five hundred thirteen thousand, nine hundred eighty-four".