2002638648 has 32 divisors (see below), whose sum is σ = 5008901760. Its totient is φ = 667238880.

The previous prime is 2002638619. The next prime is 2002638679. The reversal of 2002638648 is 8468362002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37411 + ... + 73517.

It is an arithmetic number, because the mean of its divisors is an integer number (156528180).

Almost surely, 2^2002638648 is an apocalyptic number.

It is an amenable number.

2002638648 is an abundant number, since it is smaller than the sum of its proper divisors (3006263112).

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

2002638648 is a wasteful number, since it uses less digits than its factorization.

2002638648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38427 (or 38423 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 2002638648 is about 44750.8508075545. The cubic root of 2002638648 is about 1260.4748877621.

The spelling of 2002638648 in words is "two billion, two million, six hundred thirty-eight thousand, six hundred forty-eight".