2028561741 has 24 divisors (see below), whose sum is σ = 3050598200. Its totient is φ = 1297783296.

The previous prime is 2028561739. The next prime is 2028561757. The reversal of 2028561741 is 1471658202.

2028561741 is a `hidden beast` number, since 2 + 0 + 28 + 561 + 74 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 346741641 + 1681820100 = 18621^2 + 41010^2 .

It is not a de Polignac number, because 2028561741 - 2¹ = 2028561739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2028561696 and 2028561705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028561701) 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 23 ways as a sum of consecutive naturals, for example, 17416 + ... + 66033.

Almost surely, 2^2028561741 is an apocalyptic number.

It is an amenable number.

2028561741 is a deficient number, since it is larger than the sum of its proper divisors (1022036459).

2028561741 is a wasteful number, since it uses less digits than its factorization.

2028561741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83565 (or 83562 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 2028561741 is about 45039.5575133682. The cubic root of 2028561741 is about 1265.8903137902.

The spelling of 2028561741 in words is "two billion, twenty-eight million, five hundred sixty-one thousand, seven hundred forty-one".