4027239 has 12 divisors (see below), whose sum is σ = 6032936. Its totient is φ = 2684664.

The previous prime is 4027237. The next prime is 4027273. The reversal of 4027239 is 9327204.

It is not a de Polignac number, because 4027239 - 2¹ = 4027237 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4027237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8044 + ... + 8529.

Almost surely, 2^4027239 is an apocalyptic number.

4027239 is a deficient number, since it is larger than the sum of its proper divisors (2005697).

4027239 is an equidigital number, since it uses as much as digits as its factorization.

4027239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16588 (or 16576 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 4027239 is about 2006.7981961323. The cubic root of 4027239 is about 159.0996171758.

It can be divided in two parts, 402 and 7239, that multiplied together give a triangular number (2910078 = T₂₄₁₂).

The spelling of 4027239 in words is "four million, twenty-seven thousand, two hundred thirty-nine".