2993089638 has 72 divisors (see below), whose sum is σ = 7654202136. Its totient is φ = 777416640.

The previous prime is 2993089607. The next prime is 2993089661. The reversal of 2993089638 is 8369803992.

It is a super-2 number, since 2×2993089638² = 17917171162205942088, which contains 22 as substring.

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 35 ways as a sum of consecutive naturals, for example, 6495 + ... + 77642.

It is an arithmetic number, because the mean of its divisors is an integer number (106308363).

Almost surely, 2^2993089638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2993089638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3827101068).

2993089638 is an abundant number, since it is smaller than the sum of its proper divisors (4661112498).

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

2993089638 is a wasteful number, since it uses less digits than its factorization.

2993089638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84178 (or 84160 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 57.

The square root of 2993089638 is about 54709.1366958025. The cubic root of 2993089638 is about 1441.1413337668.

The spelling of 2993089638 in words is "two billion, nine hundred ninety-three million, eighty-nine thousand, six hundred thirty-eight".