4424409 has 16 divisors (see below), whose sum is σ = 7151040. Its totient is φ = 2681280.

The previous prime is 4424389. The next prime is 4424411. The reversal of 4424409 is 9044244.

It is not a de Polignac number, because 4424409 - 2⁹ = 4423897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁷ + 4⁷ + 2¹⁷ + 4⁸ + 4¹¹ + 0 + 9³ .

4424409 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4424429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7152 + ... + 7745.

It is an arithmetic number, because the mean of its divisors is an integer number (446940).

Almost surely, 2^4424409 is an apocalyptic number.

It is an amenable number.

4424409 is a deficient number, since it is larger than the sum of its proper divisors (2726631).

4424409 is a wasteful number, since it uses less digits than its factorization.

4424409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14917 (or 14911 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 4424409 is about 2103.4279165210. The cubic root of 4424409 is about 164.1667078369.

It can be divided in two parts, 442 and 4409, that added together give a triangular number (4851 = T₉₈).

The spelling of 4424409 in words is "four million, four hundred twenty-four thousand, four hundred nine".