2144880780 has 96 divisors (see below), whose sum is σ = 6976220160. Its totient is φ = 482215680.

The previous prime is 2144880779. The next prime is 2144880809. The reversal of 2144880780 is 870884412.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16240 + ... + 67479.

It is an arithmetic number, because the mean of its divisors is an integer number (72668960).

Almost surely, 2^2144880780 is an apocalyptic number.

2144880780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144880780 is an abundant number, since it is smaller than the sum of its proper divisors (4831339380).

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

2144880780 is a wasteful number, since it uses less digits than its factorization.

2144880780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83799 (or 83797 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 42.

The square root of 2144880780 is about 46312.8576099554. The cubic root of 2144880780 is about 1289.6376964638.

The spelling of 2144880780 in words is "two billion, one hundred forty-four million, eight hundred eighty thousand, seven hundred eighty".