4389242 has 32 divisors (see below), whose sum is σ = 7862400. Its totient is φ = 1811520.

The previous prime is 4389241. The next prime is 4389257. The reversal of 4389242 is 2429834.

It is a d-powerful number, because it can be written as 4⁶ + 3¹⁰ + 8³ + 9² + 2⁷ + 4¹¹ + 2¹⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 4389199 and 4389208.

It is not an unprimeable number, because it can be changed into a prime (4389241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29384 + ... + 29532.

It is an arithmetic number, because the mean of its divisors is an integer number (245700).

Almost surely, 2^4389242 is an apocalyptic number.

4389242 is a deficient number, since it is larger than the sum of its proper divisors (3473158).

4389242 is a wasteful number, since it uses less digits than its factorization.

4389242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278.

The product of its digits is 13824, while the sum is 32.

The square root of 4389242 is about 2095.0517893360. The cubic root of 4389242 is about 163.7305957622.

It can be divided in two parts, 43892 and 42, that added together give a palindrome (43934).

The spelling of 4389242 in words is "four million, three hundred eighty-nine thousand, two hundred forty-two".