2639084634 has 24 divisors (see below), whose sum is σ = 5752262880. Its totient is φ = 874426248.

The previous prime is 2639084633. The next prime is 2639084647. The reversal of 2639084634 is 4364809362.

2639084634 is a `hidden beast` number, since 2 + 6 + 3 + 9 + 0 + 8 + 4 + 634 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2639084634.

It is not an unprimeable number, because it can be changed into a prime (2639084633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 435964 + ... + 441975.

It is an arithmetic number, because the mean of its divisors is an integer number (239677620).

Almost surely, 2^2639084634 is an apocalyptic number.

2639084634 is an abundant number, since it is smaller than the sum of its proper divisors (3113178246).

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

2639084634 is a wasteful number, since it uses less digits than its factorization.

2639084634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878114 (or 878111 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The square root of 2639084634 is about 51372.0218990843. The cubic root of 2639084634 is about 1381.9248910099.

The spelling of 2639084634 in words is "two billion, six hundred thirty-nine million, eighty-four thousand, six hundred thirty-four".