198042413296440 has 256 divisors, whose sum is σ = 663046828790400. Its totient is φ = 47085317586944.

The previous prime is 198042413296391. The next prime is 198042413296573. The reversal of 198042413296440 is 44692314240891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28445397 + ... + 34716356.

Almost surely, 2^{198042413296440} is an apocalyptic number.

198042413296440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198042413296440 is an abundant number, since it is smaller than the sum of its proper divisors (465004415493960).

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

198042413296440 is a wasteful number, since it uses less digits than its factorization.

198042413296440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63161866 (or 63161862 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 57.

The spelling of 198042413296440 in words is "one hundred ninety-eight trillion, forty-two billion, four hundred thirteen million, two hundred ninety-six thousand, four hundred forty".