1244669 has 4 divisors (see below), whose sum is σ = 1247580. Its totient is φ = 1241760.

The previous prime is 1244647. The next prime is 1244687. The reversal of 1244669 is 9664421.

It is a happy number.

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 319225 + 925444 = 565^2 + 962^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1244669 is a prime.

It is a super-2 number, since 2×1244669² = 3098401839122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674 + ... + 1715.

It is an arithmetic number, because the mean of its divisors is an integer number (311895).

2^1244669 is an apocalyptic number.

It is an amenable number.

1244669 is a deficient number, since it is larger than the sum of its proper divisors (2911).

1244669 is an equidigital number, since it uses as much as digits as its factorization.

1244669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910.

The product of its digits is 10368, while the sum is 32.

The square root of 1244669 is about 1115.6473457146. The cubic root of 1244669 is about 107.5683790667.

The spelling of 1244669 in words is "one million, two hundred forty-four thousand, six hundred sixty-nine".