198404652 has 24 divisors (see below), whose sum is σ = 471680496. Its totient is φ = 64886848.

The previous prime is 198404651. The next prime is 198404653. The reversal of 198404652 is 256404891.

It is an interprime number because it is at equal distance from previous prime (198404651) and next prime (198404653).

It is a super-2 number, since 2×198404652² = 78728811870482208, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 198404652.

It is not an unprimeable number, because it can be changed into a prime (198404651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155343 + ... + 156614.

It is an arithmetic number, because the mean of its divisors is an integer number (19653354).

Almost surely, 2^198404652 is an apocalyptic number.

198404652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198404652 is an abundant number, since it is smaller than the sum of its proper divisors (273275844).

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

198404652 is a wasteful number, since it uses less digits than its factorization.

198404652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312017 (or 312015 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 198404652 is about 14085.6186232625. The cubic root of 198404652 is about 583.2444528165.

The spelling of 198404652 in words is "one hundred ninety-eight million, four hundred four thousand, six hundred fifty-two".