1363665198 has 48 divisors (see below), whose sum is σ = 3196917504. Its totient is φ = 386633520.

The previous prime is 1363665197. The next prime is 1363665221. The reversal of 1363665198 is 8915663631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1363665197) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20811 + ... + 56217.

It is an arithmetic number, because the mean of its divisors is an integer number (66602448).

Almost surely, 2^1363665198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1363665198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1598458752).

1363665198 is an abundant number, since it is smaller than the sum of its proper divisors (1833252306).

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

1363665198 is a wasteful number, since it uses less digits than its factorization.

1363665198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35557 (or 35550 counting only the distinct ones).

The product of its digits is 699840, while the sum is 48.

The square root of 1363665198 is about 36927.8377108652. The cubic root of 1363665198 is about 1108.9260499746.

The spelling of 1363665198 in words is "one billion, three hundred sixty-three million, six hundred sixty-five thousand, one hundred ninety-eight".