2288780980 has 12 divisors (see below), whose sum is σ = 4806440100. Its totient is φ = 915512384.

The previous prime is 2288780971. The next prime is 2288780981. The reversal of 2288780980 is 890878822.

It can be written as a sum of positive squares in 2 ways, for example, as 544382224 + 1744398756 = 23332^2 + 41766^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2288780981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57219505 + ... + 57219544.

It is an arithmetic number, because the mean of its divisors is an integer number (400536675).

Almost surely, 2^2288780980 is an apocalyptic number.

2288780980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2288780980 is an abundant number, since it is smaller than the sum of its proper divisors (2517659120).

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

2288780980 is a wasteful number, since it uses less digits than its factorization.

2288780980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114439058 (or 114439056 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 52.

The square root of 2288780980 is about 47841.2058794508. The cubic root of 2288780980 is about 1317.8563653541.

The spelling of 2288780980 in words is "two billion, two hundred eighty-eight million, seven hundred eighty thousand, nine hundred eighty".