2801780244 has 36 divisors (see below), whose sum is σ = 7086678144. Its totient is φ = 933346512.

The previous prime is 2801780243. The next prime is 2801780249. The reversal of 2801780244 is 4420871082.

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 = 2801780199 and 2801780208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801780243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36669 + ... + 83355.

Almost surely, 2^2801780244 is an apocalyptic number.

It is an amenable number.

2801780244 is an abundant number, since it is smaller than the sum of its proper divisors (4284897900).

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

2801780244 is a wasteful number, since it uses less digits than its factorization.

2801780244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48364 (or 48359 counting only the distinct ones).

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

The square root of 2801780244 is about 52931.8452729545. The cubic root of 2801780244 is about 1409.7583953015.

The spelling of 2801780244 in words is "two billion, eight hundred one million, seven hundred eighty thousand, two hundred forty-four".