2538638008 has 16 divisors (see below), whose sum is σ = 4778048880. Its totient is φ = 1264491648.

The previous prime is 2538637987. The next prime is 2538638029. The reversal of 2538638008 is 8008368352.

It is an interprime number because it is at equal distance from previous prime (2538637987) and next prime (2538638029).

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, 601185 + ... + 605392.

It is an arithmetic number, because the mean of its divisors is an integer number (298628055).

Almost surely, 2^2538638008 is an apocalyptic number.

It is an amenable number.

2538638008 is a deficient number, since it is larger than the sum of its proper divisors (2239410872).

2538638008 is a wasteful number, since it uses less digits than its factorization.

2538638008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206846 (or 1206842 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 2538638008 is about 50384.8986105956. The cubic root of 2538638008 is about 1364.1650729147.

The spelling of 2538638008 in words is "two billion, five hundred thirty-eight million, six hundred thirty-eight thousand, eight".