4259439 has 32 divisors (see below), whose sum is σ = 6950400. Its totient is φ = 2573208.

The previous prime is 4259419. The next prime is 4259459. The reversal of 4259439 is 9349524.

It is an interprime number because it is at equal distance from previous prime (4259419) and next prime (4259459).

It is not a de Polignac number, because 4259439 - 2¹¹ = 4257391 is a prime.

Its product of digits (38880) is a multiple of the sum of its prime divisors (45).

4259439 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4259419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185182 + ... + 185204.

It is an arithmetic number, because the mean of its divisors is an integer number (217200).

Almost surely, 2^4259439 is an apocalyptic number.

4259439 is a deficient number, since it is larger than the sum of its proper divisors (2690961).

4259439 is an equidigital number, since it uses as much as digits as its factorization.

4259439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 45 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 4259439 is about 2063.8408368864. The cubic root of 4259439 is about 162.1004178515.

The spelling of 4259439 in words is "four million, two hundred fifty-nine thousand, four hundred thirty-nine".