2849215860 has 36 divisors (see below), whose sum is σ = 8642621988. Its totient is φ = 759790848.

The previous prime is 2849215843. The next prime is 2849215879. The reversal of 2849215860 is 685129482.

2849215860 is a `hidden beast` number, since 2 + 8 + 49 + 21 + 586 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 549246096 + 2299969764 = 23436^2 + 47958^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7914309 + ... + 7914668.

It is an arithmetic number, because the mean of its divisors is an integer number (240072833).

Almost surely, 2^2849215860 is an apocalyptic number.

2849215860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2849215860 is an abundant number, since it is smaller than the sum of its proper divisors (5793406128).

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

2849215860 is a wasteful number, since it uses less digits than its factorization.

2849215860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15828992 (or 15828987 counting only the distinct ones).

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

The square root of 2849215860 is about 53378.0466109430. The cubic root of 2849215860 is about 1417.6698974246.

The spelling of 2849215860 in words is "two billion, eight hundred forty-nine million, two hundred fifteen thousand, eight hundred sixty".