2028530975 has 12 divisors (see below), whose sum is σ = 2516891736. Its totient is φ = 1621848480.

The previous prime is 2028530929. The next prime is 2028530983. The reversal of 2028530975 is 5790358202.

It is a de Polignac number, because none of the positive numbers 2^k-2028530975 is a prime.

It is a super-2 number, since 2×2028530975² = 8229875833068901250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 19529 + ... + 66621.

It is an arithmetic number, because the mean of its divisors is an integer number (209740978).

Almost surely, 2^2028530975 is an apocalyptic number.

2028530975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2028530975 is a deficient number, since it is larger than the sum of its proper divisors (488360761).

2028530975 is a wasteful number, since it uses less digits than its factorization.

2028530975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48826 (or 48821 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 2028530975 is about 45039.2159678652. The cubic root of 2028530975 is about 1265.8839140871.

The spelling of 2028530975 in words is "two billion, twenty-eight million, five hundred thirty thousand, nine hundred seventy-five".