4194389808 has 180 divisors, whose sum is σ = 13757791320. Its totient is φ = 1189375488.

The previous prime is 4194389789. The next prime is 4194389851. The reversal of 4194389808 is 8089834914.

It is a super-2 number, since 2×4194389808² = 35185811722908553728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 964503 + ... + 968841.

It is an arithmetic number, because the mean of its divisors is an integer number (76432174).

Almost surely, 2^4194389808 is an apocalyptic number.

4194389808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4194389808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6878895660).

4194389808 is an abundant number, since it is smaller than the sum of its proper divisors (9563401512).

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

4194389808 is a wasteful number, since it uses less digits than its factorization.

4194389808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4504 (or 4488 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The square root of 4194389808 is about 64764.1089493247. The cubic root of 4194389808 is about 1612.7099414411.

The spelling of 4194389808 in words is "four billion, one hundred ninety-four million, three hundred eighty-nine thousand, eight hundred eight".