2798751228 has 144 divisors (see below), whose sum is σ = 8537195520. Its totient is φ = 705995136.

The previous prime is 2798751149. The next prime is 2798751271. The reversal of 2798751228 is 8221578972.

It is a congruent number.

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, 167853 + ... + 183771.

It is an arithmetic number, because the mean of its divisors is an integer number (59286080).

Almost surely, 2^2798751228 is an apocalyptic number.

2798751228 is a gapful number since it is divisible by the number (28) 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 2798751228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4268597760).

2798751228 is an abundant number, since it is smaller than the sum of its proper divisors (5738444292).

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

2798751228 is a wasteful number, since it uses less digits than its factorization.

2798751228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15976 (or 15967 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 51.

The square root of 2798751228 is about 52903.2251190795. The cubic root of 2798751228 is about 1409.2501802710.

The spelling of 2798751228 in words is "two billion, seven hundred ninety-eight million, seven hundred fifty-one thousand, two hundred twenty-eight".