2081423388 has 96 divisors (see below), whose sum is σ = 5460618240. Its totient is φ = 611645440.

The previous prime is 2081423369. The next prime is 2081423401. The reversal of 2081423388 is 8833241802.

It is a super-2 number, since 2×2081423388² = 8664646640226797088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 699568 + ... + 702536.

It is an arithmetic number, because the mean of its divisors is an integer number (56881440).

Almost surely, 2^2081423388 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 2081423388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2730309120).

2081423388 is an abundant number, since it is smaller than the sum of its proper divisors (3379194852).

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

2081423388 is a wasteful number, since it uses less digits than its factorization.

2081423388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147 (or 3145 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 2081423388 is about 45622.6192584336. The cubic root of 2081423388 is about 1276.7919722244.

The spelling of 2081423388 in words is "two billion, eighty-one million, four hundred twenty-three thousand, three hundred eighty-eight".