2840394384 has 160 divisors (see below), whose sum is σ = 8539453440. Its totient is φ = 902233728.

The previous prime is 2840394373. The next prime is 2840394413. The reversal of 2840394384 is 4834930482.

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, 4838539 + ... + 4839125.

It is an arithmetic number, because the mean of its divisors is an integer number (53371584).

Almost surely, 2^2840394384 is an apocalyptic number.

2840394384 is a gapful number since it is divisible by the number (24) 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 2840394384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4269726720).

2840394384 is an abundant number, since it is smaller than the sum of its proper divisors (5699059056).

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

2840394384 is a wasteful number, since it uses less digits than its factorization.

2840394384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The square root of 2840394384 is about 53295.3504913890. The cubic root of 2840394384 is about 1416.2052991617.

The spelling of 2840394384 in words is "two billion, eight hundred forty million, three hundred ninety-four thousand, three hundred eighty-four".