198463572 has 18 divisors (see below), whose sum is σ = 501671898. Its totient is φ = 66154512.

The previous prime is 198463571. The next prime is 198463609. The reversal of 198463572 is 275364891.

198463572 is a `hidden beast` number, since 1 + 9 + 8 + 4 + 635 + 7 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 188952516 + 9511056 = 13746^2 + 3084^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198463571) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2756403 + ... + 2756474.

It is an arithmetic number, because the mean of its divisors is an integer number (27870661).

Almost surely, 2^198463572 is an apocalyptic number.

198463572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198463572 is an abundant number, since it is smaller than the sum of its proper divisors (303208326).

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

198463572 is a wasteful number, since it uses less digits than its factorization.

198463572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5512887 (or 5512882 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 198463572 is about 14087.7099629429. The cubic root of 198463572 is about 583.3021822458.

It can be divided in two parts, 1984 and 63572, that added together give a palindrome (65556).

The spelling of 198463572 in words is "one hundred ninety-eight million, four hundred sixty-three thousand, five hundred seventy-two".