4091395284 has 72 divisors (see below), whose sum is σ = 10723232520. Its totient is φ = 1313760000.

The previous prime is 4091395249. The next prime is 4091395307. The reversal of 4091395284 is 4825931904.

4091395284 is a `hidden beast` number, since 4 + 0 + 91 + 39 + 528 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 18147600 + 4073247684 = 4260^2 + 63822^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 477034 + ... + 485534.

It is an arithmetic number, because the mean of its divisors is an integer number (148933785).

Almost surely, 2^4091395284 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4091395284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5361616260).

4091395284 is an abundant number, since it is smaller than the sum of its proper divisors (6631837236).

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

4091395284 is a wasteful number, since it uses less digits than its factorization.

4091395284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9001 (or 8996 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 4091395284 is about 63964.0155399894. The cubic root of 4091395284 is about 1599.4002027843.

The spelling of 4091395284 in words is "four billion, ninety-one million, three hundred ninety-five thousand, two hundred eighty-four".