2028556830 has 32 divisors (see below), whose sum is σ = 4948352928. Its totient is φ = 532080000.

The previous prime is 2028556823. The next prime is 2028556837. The reversal of 2028556830 is 386558202.

It is an interprime number because it is at equal distance from previous prime (2028556823) and next prime (2028556837).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028556837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 552421 + ... + 556080.

It is an arithmetic number, because the mean of its divisors is an integer number (154636029).

Almost surely, 2^2028556830 is an apocalyptic number.

2028556830 is an abundant number, since it is smaller than the sum of its proper divisors (2919796098).

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

2028556830 is a wasteful number, since it uses less digits than its factorization.

2028556830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108572.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 2028556830 is about 45039.5029945935. The cubic root of 2028556830 is about 1265.8892922467.

The spelling of 2028556830 in words is "two billion, twenty-eight million, five hundred fifty-six thousand, eight hundred thirty".