198502920 has 576 divisors, whose sum is σ = 873331200. Its totient is φ = 39916800.

The previous prime is 198502877. The next prime is 198502933. The reversal of 198502920 is 29205891.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6403305 + ... + 6403335.

It is an arithmetic number, because the mean of its divisors is an integer number (1516200).

Almost surely, 2^198502920 is an apocalyptic number.

198502920 is a gapful number since it is divisible by the number (10) 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 198502920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436665600).

198502920 is an abundant number, since it is smaller than the sum of its proper divisors (674828280).

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

198502920 is a wasteful number, since it uses less digits than its factorization.

198502920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 198502920 is about 14089.1064301467. The cubic root of 198502920 is about 583.3407287951.

The spelling of 198502920 in words is "one hundred ninety-eight million, five hundred two thousand, nine hundred twenty".