4226439 has 16 divisors (see below), whose sum is σ = 6470912. Its totient is φ = 2403648.

The previous prime is 4226429. The next prime is 4226459. The reversal of 4226439 is 9346224.

4226439 = 117² + 118² + ... + 242².

It is not a de Polignac number, because 4226439 - 2⁴ = 4226423 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

4226439 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4226429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6252 + ... + 6894.

It is an arithmetic number, because the mean of its divisors is an integer number (404432).

Almost surely, 2^4226439 is an apocalyptic number.

4226439 is a deficient number, since it is larger than the sum of its proper divisors (2244473).

4226439 is a wasteful number, since it uses less digits than its factorization.

4226439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966.

The product of its digits is 10368, while the sum is 30.

The square root of 4226439 is about 2055.8304891211. The cubic root of 4226439 is about 161.6807077943.

The spelling of 4226439 in words is "four million, two hundred twenty-six thousand, four hundred thirty-nine".