2638988382 has 8 divisors (see below), whose sum is σ = 5277976776. Its totient is φ = 879662792.

The previous prime is 2638988321. The next prime is 2638988399. The reversal of 2638988382 is 2838898362.

It is a sphenic number, since it is the product of 3 distinct primes.

2638988382 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 219915693 + ... + 219915704.

It is an arithmetic number, because the mean of its divisors is an integer number (659747097).

Almost surely, 2^2638988382 is an apocalyptic number.

2638988382 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2638988382 is a wasteful number, since it uses less digits than its factorization.

2638988382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439831402.

The product of its digits is 7962624, while the sum is 57.

The square root of 2638988382 is about 51371.0850771132. The cubic root of 2638988382 is about 1381.9080904053.

The spelling of 2638988382 in words is "two billion, six hundred thirty-eight million, nine hundred eighty-eight thousand, three hundred eighty-two".