198524490 has 16 divisors (see below), whose sum is σ = 476458848. Its totient is φ = 52939856.

The previous prime is 198524479. The next prime is 198524503. The reversal of 198524490 is 94425891.

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, 3308712 + ... + 3308771.

It is an arithmetic number, because the mean of its divisors is an integer number (29778678).

Almost surely, 2^198524490 is an apocalyptic number.

198524490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198524490 is an abundant number, since it is smaller than the sum of its proper divisors (277934358).

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

198524490 is a wasteful number, since it uses less digits than its factorization.

198524490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6617493.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 198524490 is about 14089.8718943786. The cubic root of 198524490 is about 583.3618572900.

It can be divided in two parts, 19852 and 4490, that added together give a palindrome (24342).

The spelling of 198524490 in words is "one hundred ninety-eight million, five hundred twenty-four thousand, four hundred ninety".