198549792 has 240 divisors, whose sum is σ = 690826752. Its totient is φ = 54743040.

The previous prime is 198549787. The next prime is 198549803. The reversal of 198549792 is 297945891.

198549792 is a `hidden beast` number, since 1 + 9 + 8 + 549 + 7 + 92 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 562288 + ... + 562640.

Almost surely, 2^198549792 is an apocalyptic number.

198549792 is a gapful number since it is divisible by the number (12) 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 198549792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345413376).

198549792 is an abundant number, since it is smaller than the sum of its proper divisors (492276960).

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

198549792 is a wasteful number, since it uses less digits than its factorization.

198549792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 396 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The square root of 198549792 is about 14090.7697447655. The cubic root of 198549792 is about 583.3866394461.

It can be divided in two parts, 19854 and 9792, that added together give a triangular number (29646 = T₂₄₃).

The spelling of 198549792 in words is "one hundred ninety-eight million, five hundred forty-nine thousand, seven hundred ninety-two".