2511228 has 12 divisors (see below), whose sum is σ = 5859560. Its totient is φ = 837072.

The previous prime is 2511169. The next prime is 2511241. The reversal of 2511228 is 8221152.

It is a happy number.

2511228 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104623 + ... + 104646.

2^2511228 is an apocalyptic number.

It is an amenable number.

2511228 is an abundant number, since it is smaller than the sum of its proper divisors (3348332).

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

2511228 is a wasteful number, since it uses less digits than its factorization.

2511228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209276 (or 209274 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 2511228 is about 1584.6854577486. The cubic root of 2511228 is about 135.9237606143.

The spelling of 2511228 in words is "two million, five hundred eleven thousand, two hundred twenty-eight".