2628245 has 4 divisors (see below), whose sum is σ = 3153900. Its totient is φ = 2102592.

The previous prime is 2628229. The next prime is 2628277. The reversal of 2628245 is 5428262.

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 628849 + 1999396 = 793^2 + 1414^2 .

It is a cyclic number.

It is not a de Polignac number, because 2628245 - 2⁴ = 2628229 is a prime.

It is a d-powerful number, because it can be written as 2¹⁰ + 6² + 2¹⁹ + 8⁴ + 2²¹ + 4⁵ + 5⁴ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262820 + ... + 262829.

It is an arithmetic number, because the mean of its divisors is an integer number (788475).

2^2628245 is an apocalyptic number.

It is an amenable number.

2628245 is a deficient number, since it is larger than the sum of its proper divisors (525655).

2628245 is an equidigital number, since it uses as much as digits as its factorization.

2628245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525654.

The product of its digits is 7680, while the sum is 29.

The square root of 2628245 is about 1621.1862940452. The cubic root of 2628245 is about 138.0030280089.

The spelling of 2628245 in words is "two million, six hundred twenty-eight thousand, two hundred forty-five".