198340072 has 16 divisors (see below), whose sum is σ = 425014560. Its totient is φ = 85002864.

The previous prime is 198340067. The next prime is 198340081. The reversal of 198340072 is 270043891.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1770838 + ... + 1770949.

It is an arithmetic number, because the mean of its divisors is an integer number (26563410).

Almost surely, 2^198340072 is an apocalyptic number.

It is an amenable number.

198340072 is an abundant number, since it is smaller than the sum of its proper divisors (226674488).

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

198340072 is a wasteful number, since it uses less digits than its factorization.

198340072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3541800 (or 3541796 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 198340072 is about 14083.3260276115. The cubic root of 198340072 is about 583.1811646261.

The spelling of 198340072 in words is "one hundred ninety-eight million, three hundred forty thousand, seventy-two".