1441669 has 2 divisors, whose sum is σ = 1441670. Its totient is φ = 1441668.

The previous prime is 1441637. The next prime is 1441673. The reversal of 1441669 is 9661441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1181569 + 260100 = 1087^2 + 510^2 .

It is an emirp because it is prime and its reverse (9661441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1441669 - 2⁵ = 1441637 is a prime.

It is a super-2 number, since 2×1441669² = 4156819011122, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1441669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1441679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720834 + 720835.

It is an arithmetic number, because the mean of its divisors is an integer number (720835).

2^1441669 is an apocalyptic number.

It is an amenable number.

1441669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1441669 is an equidigital number, since it uses as much as digits as its factorization.

1441669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 1441669 is about 1200.6952152815. The cubic root of 1441669 is about 112.9679340973.

The spelling of 1441669 in words is "one million, four hundred forty-one thousand, six hundred sixty-nine".