198543367240 has 16 divisors (see below), whose sum is σ = 446722576380. Its totient is φ = 79417346880.

The previous prime is 198543367201. The next prime is 198543367247. The reversal of 198543367240 is 42763345891.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 175237680996 + 23305686244 = 418614^2 + 152662^2 .

It is not an unprimeable number, because it can be changed into a prime (198543367247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2481792051 + ... + 2481792130.

It is a 1-persistent number, because it is pandigital, but 2⋅198543367240 = 397086734480 is not.

Almost surely, 2^198543367240 is an apocalyptic number.

198543367240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198543367240 is an abundant number, since it is smaller than the sum of its proper divisors (248179209140).

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

198543367240 is a wasteful number, since it uses less digits than its factorization.

198543367240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4963584192 (or 4963584188 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 198543367240 in words is "one hundred ninety-eight billion, five hundred forty-three million, three hundred sixty-seven thousand, two hundred forty".