2813738840 has 48 divisors (see below), whose sum is σ = 6958783440. Its totient is φ = 1023176000.

The previous prime is 2813738831. The next prime is 2813738881. The reversal of 2813738840 is 488373182.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 2813738791 and 2813738800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 285836 + ... + 295515.

It is an arithmetic number, because the mean of its divisors is an integer number (144974655).

Almost surely, 2^2813738840 is an apocalyptic number.

2813738840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2813738840 is an abundant number, since it is smaller than the sum of its proper divisors (4145044600).

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

2813738840 is a wasteful number, since it uses less digits than its factorization.

2813738840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581384 (or 581369 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 2813738840 is about 53044.6871986253. The cubic root of 2813738840 is about 1411.7612650011.

The spelling of 2813738840 in words is "two billion, eight hundred thirteen million, seven hundred thirty-eight thousand, eight hundred forty".