2004628881 has 4 divisors (see below), whose sum is σ = 2672838512. Its totient is φ = 1336419252.

The previous prime is 2004628861. The next prime is 2004628903. The reversal of 2004628881 is 1888264002.

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 not a de Polignac number, because 2004628881 - 2⁷ = 2004628753 is a prime.

It is a super-2 number, since 2×2004628881² = 8037073901078624322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2004628861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334104811 + ... + 334104816.

It is an arithmetic number, because the mean of its divisors is an integer number (668209628).

Almost surely, 2^2004628881 is an apocalyptic number.

It is an amenable number.

2004628881 is a deficient number, since it is larger than the sum of its proper divisors (668209631).

2004628881 is an equidigital number, since it uses as much as digits as its factorization.

2004628881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668209630.

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 2004628881 is about 44773.0821029779. The cubic root of 2004628881 is about 1260.8923050773.

The spelling of 2004628881 in words is "two billion, four million, six hundred twenty-eight thousand, eight hundred eighty-one".