2684321904 has 160 divisors (see below), whose sum is σ = 8063483904. Its totient is φ = 761347840.

The previous prime is 2684321873. The next prime is 2684321929. The reversal of 2684321904 is 4091234862.

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, 568417 + ... + 573119.

Almost surely, 2^2684321904 is an apocalyptic number.

2684321904 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 2684321904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4031741952).

2684321904 is an abundant number, since it is smaller than the sum of its proper divisors (5379162000).

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

2684321904 is a wasteful number, since it uses less digits than its factorization.

2684321904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4795 (or 4789 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 2684321904 is about 51810.4420363309. The cubic root of 2684321904 is about 1389.7761839658.

The spelling of 2684321904 in words is "two billion, six hundred eighty-four million, three hundred twenty-one thousand, nine hundred four".