2636245 has 8 divisors (see below), whose sum is σ = 3272760. Its totient is φ = 2036160.

The previous prime is 2636243. The next prime is 2636251. The reversal of 2636245 is 5426362.

It is a happy number.

2636245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 877969 + 1758276 = 937^2 + 1326^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2636245 - 2¹ = 2636243 is a prime.

2636245 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2636243) 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 7 ways as a sum of consecutive naturals, for example, 8946 + ... + 9235.

It is an arithmetic number, because the mean of its divisors is an integer number (409095).

2^2636245 is an apocalyptic number.

It is an amenable number.

2636245 is a deficient number, since it is larger than the sum of its proper divisors (636515).

2636245 is a wasteful number, since it uses less digits than its factorization.

2636245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18215.

The product of its digits is 8640, while the sum is 28.

The square root of 2636245 is about 1623.6517483746. The cubic root of 2636245 is about 138.1429066416.

The spelling of 2636245 in words is "two million, six hundred thirty-six thousand, two hundred forty-five".