2152849860 has 192 divisors, whose sum is σ = 7689830400. Its totient is φ = 489815424.

The previous prime is 2152849849. The next prime is 2152849861. The reversal of 2152849860 is 689482512.

2152849860 is a `hidden beast` number, since 2 + 1 + 528 + 49 + 86 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2152849861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 902229 + ... + 904611.

It is an arithmetic number, because the mean of its divisors is an integer number (40051200).

Almost surely, 2^2152849860 is an apocalyptic number.

2152849860 is a gapful number since it is divisible by the number (20) 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 2152849860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3844915200).

2152849860 is an abundant number, since it is smaller than the sum of its proper divisors (5536980540).

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

2152849860 is a wasteful number, since it uses less digits than its factorization.

2152849860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2647 (or 2639 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 2152849860 is about 46398.8131313722. The cubic root of 2152849860 is about 1291.2328937807.

The spelling of 2152849860 in words is "two billion, one hundred fifty-two million, eight hundred forty-nine thousand, eight hundred sixty".