2828128380 has 96 divisors (see below), whose sum is σ = 9872755200. Its totient is φ = 587662080.

The previous prime is 2828128379. The next prime is 2828128393. The reversal of 2828128380 is 838218282.

It is a super-2 number, since 2×2828128380² = 15996620267522848800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 301455 + ... + 310694.

It is an arithmetic number, because the mean of its divisors is an integer number (102841200).

Almost surely, 2^2828128380 is an apocalyptic number.

2828128380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2828128380 is an abundant number, since it is smaller than the sum of its proper divisors (7044626820).

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

2828128380 is a wasteful number, since it uses less digits than its factorization.

2828128380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612179 (or 612177 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 42.

The square root of 2828128380 is about 53180.1502442406. The cubic root of 2828128380 is about 1414.1637698290.

It can be divided in two parts, 282812 and 8380, that added together give a palindrome (291192).

The spelling of 2828128380 in words is "two billion, eight hundred twenty-eight million, one hundred twenty-eight thousand, three hundred eighty".