2538393684 has 12 divisors (see below), whose sum is σ = 5922918624. Its totient is φ = 846131224.

The previous prime is 2538393617. The next prime is 2538393703. The reversal of 2538393684 is 4863938352.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105766392 + ... + 105766415.

It is an arithmetic number, because the mean of its divisors is an integer number (493576552).

Almost surely, 2^2538393684 is an apocalyptic number.

It is an amenable number.

2538393684 is an abundant number, since it is smaller than the sum of its proper divisors (3384524940).

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

2538393684 is a wasteful number, since it uses less digits than its factorization.

2538393684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211532814 (or 211532812 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 51.

The square root of 2538393684 is about 50382.4739765724. The cubic root of 2538393684 is about 1364.1213081138.

The spelling of 2538393684 in words is "two billion, five hundred thirty-eight million, three hundred ninety-three thousand, six hundred eighty-four".