2628828720 has 240 divisors, whose sum is σ = 10128518400. Its totient is φ = 598565376.

The previous prime is 2628828701. The next prime is 2628828749. The reversal of 2628828720 is 278288262.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1546431 + ... + 1548129.

It is an arithmetic number, because the mean of its divisors is an integer number (42202160).

Almost surely, 2^2628828720 is an apocalyptic number.

2628828720 is a gapful number since it is divisible by the number (20) 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 2628828720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5064259200).

2628828720 is an abundant number, since it is smaller than the sum of its proper divisors (7499689680).

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

2628828720 is a wasteful number, since it uses less digits than its factorization.

2628828720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032 (or 2023 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The square root of 2628828720 is about 51272.1046964136. The cubic root of 2628828720 is about 1380.1324384552.

The spelling of 2628828720 in words is "two billion, six hundred twenty-eight million, eight hundred twenty-eight thousand, seven hundred twenty".