198520572 has 24 divisors (see below), whose sum is σ = 465620176. Its totient is φ = 65829888.

The previous prime is 198520549. The next prime is 198520639. The reversal of 198520572 is 275025891.

It is a self number, because there is not a number n which added to its sum of digits gives 198520572.

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, 40543 + ... + 45174.

Almost surely, 2^198520572 is an apocalyptic number.

198520572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198520572 is an abundant number, since it is smaller than the sum of its proper divisors (267099604).

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

198520572 is a wasteful number, since it uses less digits than its factorization.

198520572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85917 (or 85915 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 198520572 is about 14089.7328576521. The cubic root of 198520572 is about 583.3580195993.

The spelling of 198520572 in words is "one hundred ninety-eight million, five hundred twenty thousand, five hundred seventy-two".