2028338577 has 10 divisors (see below), whose sum is σ = 3029987378. Its totient is φ = 1352225664.

The previous prime is 2028338573. The next prime is 2028338603. The reversal of 2028338577 is 7758338202.

2028338577 is a `hidden beast` number, since 20 + 28 + 3 + 38 + 577 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1869351696 + 158986881 = 43236^2 + 12609^2 .

It is not a de Polignac number, because 2028338577 - 2² = 2028338573 is a prime.

It is a super-2 number, since 2×2028338577² = 8228314765892769858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2028338573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12520528 + ... + 12520689.

Almost surely, 2^2028338577 is an apocalyptic number.

2028338577 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2028338577 is a deficient number, since it is larger than the sum of its proper divisors (1001648801).

2028338577 is an equidigital number, since it uses as much as digits as its factorization.

2028338577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25041229 (or 25041220 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 2028338577 is about 45037.0800230210. The cubic root of 2028338577 is about 1265.8438914900.

The spelling of 2028338577 in words is "two billion, twenty-eight million, three hundred thirty-eight thousand, five hundred seventy-seven".