2649445 has 8 divisors (see below), whose sum is σ = 3253536. Its totient is φ = 2070096.

The previous prime is 2649431. The next prime is 2649473. The reversal of 2649445 is 5449462.

2649445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2649445 - 2¹¹ = 2647397 is a prime.

It is a Duffinian number.

2649445 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2649445.

It is a congruent number.

It is an unprimeable number.

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, 5947 + ... + 6376.

It is an arithmetic number, because the mean of its divisors is an integer number (406692).

2^2649445 is an apocalyptic number.

It is an amenable number.

2649445 is a deficient number, since it is larger than the sum of its proper divisors (604091).

2649445 is a wasteful number, since it uses less digits than its factorization.

2649445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12371.

The product of its digits is 34560, while the sum is 34.

The square root of 2649445 is about 1627.7115837887. The cubic root of 2649445 is about 138.3730890074.

The spelling of 2649445 in words is "two million, six hundred forty-nine thousand, four hundred forty-five".