4117918398 has 64 divisors (see below), whose sum is σ = 9570451968. Its totient is φ = 1167365120.

The previous prime is 4117918379. The next prime is 4117918403. The reversal of 4117918398 is 8938197114.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4117918398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176386 + ... + 198362.

It is an arithmetic number, because the mean of its divisors is an integer number (149538312).

Almost surely, 2^4117918398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4117918398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4785225984).

4117918398 is an abundant number, since it is smaller than the sum of its proper divisors (5452533570).

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

4117918398 is a wasteful number, since it uses less digits than its factorization.

4117918398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22177.

The product of its digits is 435456, while the sum is 51.

The square root of 4117918398 is about 64171.0090149750. The cubic root of 4117918398 is about 1602.8488824801.

The spelling of 4117918398 in words is "four billion, one hundred seventeen million, nine hundred eighteen thousand, three hundred ninety-eight".