2181344248 has 64 divisors (see below), whose sum is σ = 4459593600. Its totient is φ = 996831360.

The previous prime is 2181344237. The next prime is 2181344251. The reversal of 2181344248 is 8424431812.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 540478 + ... + 544498.

It is an arithmetic number, because the mean of its divisors is an integer number (69681150).

Almost surely, 2^2181344248 is an apocalyptic number.

It is an amenable number.

2181344248 is an abundant number, since it is smaller than the sum of its proper divisors (2278249352).

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

2181344248 is a wasteful number, since it uses less digits than its factorization.

2181344248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4172 (or 4168 counting only the distinct ones).

The product of its digits is 49152, while the sum is 37.

The square root of 2181344248 is about 46704.8632157295. The cubic root of 2181344248 is about 1296.9047164918.

The spelling of 2181344248 in words is "two billion, one hundred eighty-one million, three hundred forty-four thousand, two hundred forty-eight".