2628782241 has 4 divisors (see below), whose sum is σ = 3505042992. Its totient is φ = 1752521492.

The previous prime is 2628782207. The next prime is 2628782243. The reversal of 2628782241 is 1422878262.

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 a de Polignac number, because none of the positive numbers 2^k-2628782241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2628782193 and 2628782202.

It is not an unprimeable number, because it can be changed into a prime (2628782243) 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, 438130371 + ... + 438130376.

It is an arithmetic number, because the mean of its divisors is an integer number (876260748).

Almost surely, 2^2628782241 is an apocalyptic number.

It is an amenable number.

2628782241 is a deficient number, since it is larger than the sum of its proper divisors (876260751).

2628782241 is an equidigital number, since it uses as much as digits as its factorization.

2628782241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876260750.

The product of its digits is 172032, while the sum is 42.

The square root of 2628782241 is about 51271.6514362469. The cubic root of 2628782241 is about 1380.1243045978.

The spelling of 2628782241 in words is "two billion, six hundred twenty-eight million, seven hundred eighty-two thousand, two hundred forty-one".