2775134220 has 48 divisors (see below), whose sum is σ = 7773722880. Its totient is φ = 739717056.

The previous prime is 2775134209. The next prime is 2775134221. The reversal of 2775134220 is 224315772.

It is not an unprimeable number, because it can be changed into a prime (2775134221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152361 + ... + 169599.

It is an arithmetic number, because the mean of its divisors is an integer number (161952560).

Almost surely, 2^2775134220 is an apocalyptic number.

2775134220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2775134220 is an abundant number, since it is smaller than the sum of its proper divisors (4998588660).

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

2775134220 is a wasteful number, since it uses less digits than its factorization.

2775134220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19934 (or 19932 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 2775134220 is about 52679.5427087214. The cubic root of 2775134220 is about 1405.2750347031.

Adding to 2775134220 its reverse (224315772), we get a palindrome (2999449992).

The spelling of 2775134220 in words is "two billion, seven hundred seventy-five million, one hundred thirty-four thousand, two hundred twenty".