1244845 has 12 divisors (see below), whose sum is σ = 1738044. Its totient is φ = 853440.

The previous prime is 1244839. The next prime is 1244857. The reversal of 1244845 is 5484421.

It can be written as a sum of positive squares in 2 ways, for example, as 298116 + 946729 = 546^2 + 973^2 .

It is not a de Polignac number, because 1244845 - 2⁵ = 1244813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2296 + ... + 2785.

It is an arithmetic number, because the mean of its divisors is an integer number (144837).

2^1244845 is an apocalyptic number.

It is an amenable number.

1244845 is a deficient number, since it is larger than the sum of its proper divisors (493199).

1244845 is an equidigital number, since it uses as much as digits as its factorization.

1244845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5100 (or 5093 counting only the distinct ones).

The product of its digits is 5120, while the sum is 28.

The square root of 1244845 is about 1115.7262208983. The cubic root of 1244845 is about 107.5734489936.

The spelling of 1244845 in words is "one million, two hundred forty-four thousand, eight hundred forty-five".