2277352728 has 96 divisors (see below), whose sum is σ = 7355462400. Its totient is φ = 622378944.

The previous prime is 2277352717. The next prime is 2277352729. The reversal of 2277352728 is 8272537722.

2277352728 is a `hidden beast` number, since 2 + 277 + 352 + 7 + 28 = 666.

2277352728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2277352728³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2277352729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86638 + ... + 109821.

It is an arithmetic number, because the mean of its divisors is an integer number (76619400).

Almost surely, 2^2277352728 is an apocalyptic number.

2277352728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2277352728 is an abundant number, since it is smaller than the sum of its proper divisors (5078109672).

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

2277352728 is a wasteful number, since it uses less digits than its factorization.

2277352728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196501 (or 196494 counting only the distinct ones).

The product of its digits is 658560, while the sum is 45.

The square root of 2277352728 is about 47721.6169885305. The cubic root of 2277352728 is about 1315.6592814722.

The spelling of 2277352728 in words is "two billion, two hundred seventy-seven million, three hundred fifty-two thousand, seven hundred twenty-eight".