4421369 has 4 divisors (see below), whose sum is σ = 4573860. Its totient is φ = 4268880.

The previous prime is 4421353. The next prime is 4421371. The reversal of 4421369 is 9631244.

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 3655744 + 765625 = 1912^2 + 875^2 .

It is a cyclic number.

It is not a de Polignac number, because 4421369 - 2⁴ = 4421353 is a prime.

It is a super-2 number, since 2×4421369² = 39097007668322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 152461 = 4421369 / (4 + 4 + 2 + 1 + 3 + 6 + 9).

It is a d-powerful number, because it can be written as 4⁷ + 4¹¹ + 2¹⁵ + 1 + 3¹¹ + 6² + 9³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4421869) 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, 76202 + ... + 76259.

It is an arithmetic number, because the mean of its divisors is an integer number (1143465).

Almost surely, 2^4421369 is an apocalyptic number.

It is an amenable number.

4421369 is a deficient number, since it is larger than the sum of its proper divisors (152491).

4421369 is a wasteful number, since it uses less digits than its factorization.

4421369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152490.

The product of its digits is 5184, while the sum is 29.

The square root of 4421369 is about 2102.7051624039. The cubic root of 4421369 is about 164.1290997151.

The spelling of 4421369 in words is "four million, four hundred twenty-one thousand, three hundred sixty-nine".