2638834884 has 72 divisors (see below), whose sum is σ = 7630034048. Its totient is φ = 753287040.

The previous prime is 2638834837. The next prime is 2638834889. The reversal of 2638834884 is 4884388362.

It is a self number, because there is not a number n which added to its sum of digits gives 2638834884.

It is not an unprimeable number, because it can be changed into a prime (2638834889) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 328929 + ... + 336855.

Almost surely, 2^2638834884 is an apocalyptic number.

It is an amenable number.

2638834884 is an abundant number, since it is smaller than the sum of its proper divisors (4991199164).

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

2638834884 is a wasteful number, since it uses less digits than its factorization.

2638834884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9265 (or 9260 counting only the distinct ones).

The product of its digits is 7077888, while the sum is 54.

The square root of 2638834884 is about 51369.5910437294. The cubic root of 2638834884 is about 1381.8812967746.

The spelling of 2638834884 in words is "two billion, six hundred thirty-eight million, eight hundred thirty-four thousand, eight hundred eighty-four".