2028601616 has 20 divisors (see below), whose sum is σ = 3966477900. Its totient is φ = 1004994432.

The previous prime is 2028601613. The next prime is 2028601693. The reversal of 2028601616 is 6161068202.

It can be written as a sum of positive squares in 2 ways, for example, as 1413760000 + 614841616 = 37600^2 + 24796^2 .

It is a super-2 number, since 2×2028601616² = 8230449032875622912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2028601613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579851 + ... + 583338.

It is an arithmetic number, because the mean of its divisors is an integer number (198323895).

Almost surely, 2^2028601616 is an apocalyptic number.

It is an amenable number.

2028601616 is a deficient number, since it is larger than the sum of its proper divisors (1937876284).

2028601616 is a wasteful number, since it uses less digits than its factorization.

2028601616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163306 (or 1163300 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 2028601616 is about 45040.0001776199. Note that the first 3 decimals coincide. The cubic root of 2028601616 is about 1265.8986081800.

Adding to 2028601616 its reverse (6161068202), we get a palindrome (8189669818).

It can be divided in two parts, 20286016 and 16, that multiplied together give a square (324576256 = 18016²).

The spelling of 2028601616 in words is "two billion, twenty-eight million, six hundred one thousand, six hundred sixteen".