2028317481 has 48 divisors (see below), whose sum is σ = 3145942800. Its totient is φ = 1254850560.

The previous prime is 2028317471. The next prime is 2028317497. The reversal of 2028317481 is 1847138202.

It can be written as a sum of positive squares in 8 ways, for example, as 174240000 + 1854077481 = 13200^2 + 43059^2 .

It is not a de Polignac number, because 2028317481 - 2¹⁰ = 2028316457 is a prime.

It is a super-2 number, since 2×2028317481² = 8228143607460370722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2028317411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4399591 + ... + 4400051.

It is an arithmetic number, because the mean of its divisors is an integer number (65540475).

Almost surely, 2^2028317481 is an apocalyptic number.

It is an amenable number.

2028317481 is a deficient number, since it is larger than the sum of its proper divisors (1117625319).

2028317481 is a wasteful number, since it uses less digits than its factorization.

2028317481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 2028317481 is about 45036.8458153988. The cubic root of 2028317481 is about 1265.8395029500.

The spelling of 2028317481 in words is "two billion, twenty-eight million, three hundred seventeen thousand, four hundred eighty-one".