198410240 has 128 divisors (see below), whose sum is σ = 547348320. Its totient is φ = 67633152.

The previous prime is 198410221. The next prime is 198410269. The reversal of 198410240 is 42014891.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146794 + ... + 1146966.

Almost surely, 2^198410240 is an apocalyptic number.

198410240 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 198410240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273674160).

198410240 is an abundant number, since it is smaller than the sum of its proper divisors (348938080).

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

198410240 is an frugal number, since it uses more digits than its factorization.

198410240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 198410240 is about 14085.8169802110. The cubic root of 198410240 is about 583.2499283928.

The spelling of 198410240 in words is "one hundred ninety-eight million, four hundred ten thousand, two hundred forty".