2445605 has 8 divisors (see below), whose sum is σ = 2943864. Its totient is φ = 1950400.

The previous prime is 2445601. The next prime is 2445617. The reversal of 2445605 is 5065442.

It can be written as a sum of positive squares in 4 ways, for example, as 228484 + 2217121 = 478^2 + 1489^2 .

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

It is not a de Polignac number, because 2445605 - 2² = 2445601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2445601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1775 + ... + 2835.

It is an arithmetic number, because the mean of its divisors is an integer number (367983).

2^2445605 is an apocalyptic number.

It is an amenable number.

2445605 is a deficient number, since it is larger than the sum of its proper divisors (498259).

2445605 is a wasteful number, since it uses less digits than its factorization.

2445605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2445605 is about 1563.8430228127. The cubic root of 2445605 is about 134.7293158761.

The spelling of 2445605 in words is "two million, four hundred forty-five thousand, six hundred five".