2750228220 has 48 divisors (see below), whose sum is σ = 8035453440. Its totient is φ = 701507136.

The previous prime is 2750228213. The next prime is 2750228231. The reversal of 2750228220 is 228220572.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 995080 + ... + 997839.

It is an arithmetic number, because the mean of its divisors is an integer number (167405280).

Almost surely, 2^2750228220 is an apocalyptic number.

2750228220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2750228220 is an abundant number, since it is smaller than the sum of its proper divisors (5285225220).

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

2750228220 is a wasteful number, since it uses less digits than its factorization.

2750228220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992954 (or 1992952 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 2750228220 is about 52442.6183556847. The cubic root of 2750228220 is about 1401.0584207051.

Adding to 2750228220 its reverse (228220572), we get a palindrome (2978448792).

The spelling of 2750228220 in words is "two billion, seven hundred fifty million, two hundred twenty-eight thousand, two hundred twenty".