2282780544 has 128 divisors (see below), whose sum is σ = 6902772480. Its totient is φ = 661647360.

The previous prime is 2282780509. The next prime is 2282780551. The reversal of 2282780544 is 4450872822.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×2282780544² = 10422174024129871872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2282780496 and 2282780505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85404 + ... + 108900.

It is an arithmetic number, because the mean of its divisors is an integer number (53927910).

Almost surely, 2^2282780544 is an apocalyptic number.

2282780544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2282780544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3451386240).

2282780544 is an abundant number, since it is smaller than the sum of its proper divisors (4619991936).

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

2282780544 is a wasteful number, since it uses less digits than its factorization.

2282780544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23548 (or 23536 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 42.

The square root of 2282780544 is about 47778.4527166797. The cubic root of 2282780544 is about 1316.7036945060.

The spelling of 2282780544 in words is "two billion, two hundred eighty-two million, seven hundred eighty thousand, five hundred forty-four".