2684268240 has 40 divisors (see below), whose sum is σ = 8321232288. Its totient is φ = 715804800.

The previous prime is 2684268229. The next prime is 2684268247. The reversal of 2684268240 is 428624862.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2684268192 and 2684268201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2684268247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5591986 + ... + 5592465.

Almost surely, 2^2684268240 is an apocalyptic number.

2684268240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2684268240 is an abundant number, since it is smaller than the sum of its proper divisors (5636964048).

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

2684268240 is a wasteful number, since it uses less digits than its factorization.

2684268240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11184467 (or 11184461 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 42.

The square root of 2684268240 is about 51809.9241458622. The cubic root of 2684268240 is about 1389.7669226019.

The spelling of 2684268240 in words is "two billion, six hundred eighty-four million, two hundred sixty-eight thousand, two hundred forty".