4491089360 has 40 divisors (see below), whose sum is σ = 10469404320. Its totient is φ = 1791683712.

The previous prime is 4491089357. The next prime is 4491089401. The reversal of 4491089360 is 639801944.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43742 + ... + 104381.

It is an arithmetic number, because the mean of its divisors is an integer number (261735108).

Almost surely, 2^4491089360 is an apocalyptic number.

4491089360 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4491089360 is an abundant number, since it is smaller than the sum of its proper divisors (5978314960).

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

4491089360 is a wasteful number, since it uses less digits than its factorization.

4491089360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148515 (or 148509 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 4491089360 is about 67015.5904249153. The cubic root of 4491089360 is about 1649.8731901319.

The spelling of 4491089360 in words is "four billion, four hundred ninety-one million, eighty-nine thousand, three hundred sixty".