2028751228 has 24 divisors (see below), whose sum is σ = 4188391424. Its totient is φ = 841417200.

The previous prime is 2028751199. The next prime is 2028751243. The reversal of 2028751228 is 8221578202.

It is a happy number.

It is a super-2 number, since 2×2028751228² = 8231663090223015968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1167768 + ... + 1169503.

Almost surely, 2^2028751228 is an apocalyptic number.

2028751228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2028751228 is an abundant number, since it is smaller than the sum of its proper divisors (2159640196).

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

2028751228 is a wasteful number, since it uses less digits than its factorization.

2028751228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337313 (or 2337311 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 2028751228 is about 45041.6610262099. The cubic root of 2028751228 is about 1265.9297279697.

The spelling of 2028751228 in words is "two billion, twenty-eight million, seven hundred fifty-one thousand, two hundred twenty-eight".