2831247252 has 144 divisors (see below), whose sum is σ = 7868886480. Its totient is φ = 854654976.

The previous prime is 2831247239. The next prime is 2831247271. The reversal of 2831247252 is 2527421382.

2831247252 is a `hidden beast` number, since 283 + 124 + 7 + 252 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 693479556 + 2137767696 = 26334^2 + 46236^2 .

It is a super-2 number, since 2×2831247252² = 16031922003915103008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2195824 + ... + 2197112.

It is an arithmetic number, because the mean of its divisors is an integer number (54645045).

Almost surely, 2^2831247252 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 2831247252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3934443240).

2831247252 is an abundant number, since it is smaller than the sum of its proper divisors (5037639228).

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

2831247252 is a wasteful number, since it uses less digits than its factorization.

2831247252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450 (or 1445 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 2831247252 is about 53209.4658120151. The cubic root of 2831247252 is about 1414.6834274546.

The spelling of 2831247252 in words is "two billion, eight hundred thirty-one million, two hundred forty-seven thousand, two hundred fifty-two".