2638030128 has 80 divisors (see below), whose sum is σ = 6932520576. Its totient is φ = 864230400.

The previous prime is 2638030027. The next prime is 2638030133. The reversal of 2638030128 is 8210308362.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2195928 + ... + 2197128.

Almost surely, 2^2638030128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2638030128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3466260288).

2638030128 is an abundant number, since it is smaller than the sum of its proper divisors (4294490448).

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

2638030128 is a wasteful number, since it uses less digits than its factorization.

2638030128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962 (or 1956 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 2638030128 is about 51361.7574465672. The cubic root of 2638030128 is about 1381.7408066995.

The spelling of 2638030128 in words is "two billion, six hundred thirty-eight million, thirty thousand, one hundred twenty-eight".