2684431320 has 128 divisors (see below), whose sum is σ = 8306288640. Its totient is φ = 693665280.

The previous prime is 2684431319. The next prime is 2684431327. The reversal of 2684431320 is 231344862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2684431327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 578610 + ... + 583230.

It is an arithmetic number, because the mean of its divisors is an integer number (64892880).

Almost surely, 2^2684431320 is an apocalyptic number.

2684431320 is a gapful number since it is divisible by the number (20) 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 2684431320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4153144320).

2684431320 is an abundant number, since it is smaller than the sum of its proper divisors (5621857320).

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

2684431320 is a wasteful number, since it uses less digits than its factorization.

2684431320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4785 (or 4781 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 2684431320 is about 51811.4979517095. The cubic root of 2684431320 is about 1389.7950666595.

The spelling of 2684431320 in words is "two billion, six hundred eighty-four million, four hundred thirty-one thousand, three hundred twenty".