198873430 has 32 divisors (see below), whose sum is σ = 413097984. Its totient is φ = 67520736.

The previous prime is 198873427. The next prime is 198873449. The reversal of 198873430 is 34378891.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6582 + ... + 21001.

It is an arithmetic number, because the mean of its divisors is an integer number (12909312).

Almost surely, 2^198873430 is an apocalyptic number.

198873430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198873430 is an abundant number, since it is smaller than the sum of its proper divisors (214224554).

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

198873430 is a wasteful number, since it uses less digits than its factorization.

198873430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27700.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 198873430 is about 14102.2491114006. The cubic root of 198873430 is about 583.7034425863.

The spelling of 198873430 in words is "one hundred ninety-eight million, eight hundred seventy-three thousand, four hundred thirty".