198015730484 has 48 divisors (see below), whose sum is σ = 416576973120. Its totient is φ = 81151338240.

The previous prime is 198015730457. The next prime is 198015730553. The reversal of 198015730484 is 484037510891.

It is a happy number.

It is a super-2 number, since 2×198015730484² (a number of 23 digits) contains 22 as substring.

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, 4000769 + ... + 4049960.

It is an arithmetic number, because the mean of its divisors is an integer number (8678686940).

Almost surely, 2^198015730484 is an apocalyptic number.

It is an amenable number.

198015730484 is an abundant number, since it is smaller than the sum of its proper divisors (218561242636).

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

198015730484 is a wasteful number, since it uses less digits than its factorization.

198015730484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8050800 (or 8050798 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 198015730484 in words is "one hundred ninety-eight billion, fifteen million, seven hundred thirty thousand, four hundred eighty-four".