2081331252 has 432 divisors, whose sum is σ = 7417492992. Its totient is φ = 483356160.

The previous prime is 2081331191. The next prime is 2081331277. The reversal of 2081331252 is 2521331802.

2081331252 is a `hidden beast` number, since 2 + 0 + 81 + 331 + 252 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 9333213 + ... + 9333435.

Almost surely, 2^2081331252 is an apocalyptic number.

2081331252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2081331252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3708746496).

2081331252 is an abundant number, since it is smaller than the sum of its proper divisors (5336161740).

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

2081331252 is a wasteful number, since it uses less digits than its factorization.

2081331252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2081331252 is about 45621.6094849798. The cubic root of 2081331252 is about 1276.7731325140.

It can be divided in two parts, 2081 and 331252, that added together give a palindrome (333333).

The spelling of 2081331252 in words is "two billion, eighty-one million, three hundred thirty-one thousand, two hundred fifty-two".