2668940384 has 48 divisors (see below), whose sum is σ = 5749724736. Its totient is φ = 1209436800.

The previous prime is 2668940363. The next prime is 2668940423. The reversal of 2668940384 is 4830498662.

It is a happy number.

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, 105059 + ... + 127965.

It is an arithmetic number, because the mean of its divisors is an integer number (119785932).

Almost surely, 2^2668940384 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 2668940384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2874862368).

2668940384 is an abundant number, since it is smaller than the sum of its proper divisors (3080784352).

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

2668940384 is a wasteful number, since it uses less digits than its factorization.

2668940384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23259 (or 23251 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 50.

The square root of 2668940384 is about 51661.7884320704. The cubic root of 2668940384 is about 1387.1165636246.

The spelling of 2668940384 in words is "two billion, six hundred sixty-eight million, nine hundred forty thousand, three hundred eighty-four".