2801072844 has 36 divisors (see below), whose sum is σ = 7145458320. Its totient is φ = 925123680.

The previous prime is 2801072839. The next prime is 2801072861. The reversal of 2801072844 is 4482701082.

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 (36).

It is a junction number, because it is equal to n+sod(n) for n = 2801072799 and 2801072808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 352992 + ... + 360839.

Almost surely, 2^2801072844 is an apocalyptic number.

It is an amenable number.

2801072844 is an abundant number, since it is smaller than the sum of its proper divisors (4344385476).

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

2801072844 is a wasteful number, since it uses less digits than its factorization.

2801072844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713950 (or 713945 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 2801072844 is about 52925.1626733447. The cubic root of 2801072844 is about 1409.6397389540.

The spelling of 2801072844 in words is "two billion, eight hundred one million, seventy-two thousand, eight hundred forty-four".