198043452 has 72 divisors (see below), whose sum is σ = 511514640. Its totient is φ = 64592640.

The previous prime is 198043451. The next prime is 198043453. The reversal of 198043452 is 254340891.

It is an interprime number because it is at equal distance from previous prime (198043451) and next prime (198043453).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198043451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 470202 + ... + 470622.

It is an arithmetic number, because the mean of its divisors is an integer number (7104370).

Almost surely, 2^198043452 is an apocalyptic number.

198043452 is a gapful number since it is divisible by the number (12) 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 198043452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255757320).

198043452 is an abundant number, since it is smaller than the sum of its proper divisors (313471188).

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

198043452 is a wasteful number, since it uses less digits than its factorization.

198043452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 198043452 is about 14072.7911943580. The cubic root of 198043452 is about 582.8903013967.

The spelling of 198043452 in words is "one hundred ninety-eight million, forty-three thousand, four hundred fifty-two".