2128245628 has 12 divisors (see below), whose sum is σ = 3726414720. Its totient is φ = 1063555712.

The previous prime is 2128245617. The next prime is 2128245629. The reversal of 2128245628 is 8265428212.

It is a super-2 number, since 2×2128245628² = 9058858906202228768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128245629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133276 + ... + 148387.

It is an arithmetic number, because the mean of its divisors is an integer number (310534560).

Almost surely, 2^2128245628 is an apocalyptic number.

It is an amenable number.

2128245628 is a deficient number, since it is larger than the sum of its proper divisors (1598169092).

2128245628 is a wasteful number, since it uses less digits than its factorization.

2128245628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283556 (or 283554 counting only the distinct ones).

The product of its digits is 122880, while the sum is 40.

The square root of 2128245628 is about 46132.9126329565. The cubic root of 2128245628 is about 1286.2950053936.

The spelling of 2128245628 in words is "two billion, one hundred twenty-eight million, two hundred forty-five thousand, six hundred twenty-eight".