2626408049 has 4 divisors (see below), whose sum is σ = 2626733940. Its totient is φ = 2626082160.

The previous prime is 2626408039. The next prime is 2626408121. The reversal of 2626408049 is 9408046262.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1463598049 + 1162810000 = 38257^2 + 34100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2626408049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2626407997 and 2626408015.

It is not an unprimeable number, because it can be changed into a prime (2626408039) 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 3 ways as a sum of consecutive naturals, for example, 150542 + ... + 167079.

It is an arithmetic number, because the mean of its divisors is an integer number (656683485).

Almost surely, 2^2626408049 is an apocalyptic number.

It is an amenable number.

2626408049 is a deficient number, since it is larger than the sum of its proper divisors (325891).

2626408049 is an equidigital number, since it uses as much as digits as its factorization.

2626408049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325890.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 2626408049 is about 51248.4931388231. The cubic root of 2626408049 is about 1379.7086917493.

The spelling of 2626408049 in words is "two billion, six hundred twenty-six million, four hundred eight thousand, forty-nine".