2664245 has 4 divisors (see below), whose sum is σ = 3197100. Its totient is φ = 2131392.

The previous prime is 2664241. The next prime is 2664247. The reversal of 2664245 is 5424662.

2664245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1423249 + 1240996 = 1193^2 + 1114^2 .

It is a cyclic number.

It is not a de Polignac number, because 2664245 - 2² = 2664241 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 6⁷ + 6⁷ + 4⁵ + 2²¹ + 4⁵ + 5⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664241) 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, 266420 + ... + 266429.

It is an arithmetic number, because the mean of its divisors is an integer number (799275).

2^2664245 is an apocalyptic number.

It is an amenable number.

2664245 is a deficient number, since it is larger than the sum of its proper divisors (532855).

2664245 is an equidigital number, since it uses as much as digits as its factorization.

2664245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532854.

The product of its digits is 11520, while the sum is 29.

The square root of 2664245 is about 1632.2515124821. The cubic root of 2664245 is about 138.6302649097.

The spelling of 2664245 in words is "two million, six hundred sixty-four thousand, two hundred forty-five".