4493491086 has 64 divisors (see below), whose sum is σ = 10476748800. Its totient is φ = 1258354656.

The previous prime is 4493491033. The next prime is 4493491109. The reversal of 4493491086 is 6801943944.

It is a happy number.

It is a super-2 number, since 2×4493491086² = 40382924279922918792, which contains 22 as substring.

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, 456331 + ... + 466073.

It is an arithmetic number, because the mean of its divisors is an integer number (163699200).

Almost surely, 2^4493491086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4493491086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5238374400).

4493491086 is an abundant number, since it is smaller than the sum of its proper divisors (5983257714).

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

4493491086 is a wasteful number, since it uses less digits than its factorization.

4493491086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9973.

The product of its (nonzero) digits is 746496, while the sum is 48.

The square root of 4493491086 is about 67033.5071885695. The cubic root of 4493491086 is about 1650.1672418175.

The spelling of 4493491086 in words is "four billion, four hundred ninety-three million, four hundred ninety-one thousand, eighty-six".