2028938461 has 4 divisors (see below), whose sum is σ = 2213387424. Its totient is φ = 1844489500.

The previous prime is 2028938459. The next prime is 2028938467. The reversal of 2028938461 is 1648398202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2028938461 - 2¹ = 2028938459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028938467) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 92224465 + ... + 92224486.

It is an arithmetic number, because the mean of its divisors is an integer number (553346856).

Almost surely, 2^2028938461 is an apocalyptic number.

It is an amenable number.

2028938461 is a deficient number, since it is larger than the sum of its proper divisors (184448963).

2028938461 is a wasteful number, since it uses less digits than its factorization.

2028938461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184448962.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 2028938461 is about 45043.7394207009. The cubic root of 2028938461 is about 1265.9686708961.

The spelling of 2028938461 in words is "two billion, twenty-eight million, nine hundred thirty-eight thousand, four hundred sixty-one".