198984492 has 144 divisors (see below), whose sum is σ = 632016000. Its totient is φ = 53833248.

The previous prime is 198984481. The next prime is 198984503. The reversal of 198984492 is 294489891.

198984492 is a `hidden beast` number, since 198 + 9 + 8 + 449 + 2 = 666.

198984492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (198984481) and next prime (198984503).

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 47 ways as a sum of consecutive naturals, for example, 99559 + ... + 101537.

It is an arithmetic number, because the mean of its divisors is an integer number (4389000).

Almost surely, 2^198984492 is an apocalyptic number.

198984492 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 198984492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316008000).

198984492 is an abundant number, since it is smaller than the sum of its proper divisors (433031508).

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

198984492 is a wasteful number, since it uses less digits than its factorization.

198984492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025 (or 2010 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 198984492 is about 14106.1863024703. The cubic root of 198984492 is about 583.8120798701.

The spelling of 198984492 in words is "one hundred ninety-eight million, nine hundred eighty-four thousand, four hundred ninety-two".