4072439 has 16 divisors (see below), whose sum is σ = 4915200. Its totient is φ = 3369240.

The previous prime is 4072433. The next prime is 4072447. The reversal of 4072439 is 9342704.

It is not a de Polignac number, because 4072439 - 2¹² = 4068343 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4072433) 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, 10442 + ... + 10824.

It is an arithmetic number, because the mean of its divisors is an integer number (307200).

Almost surely, 2^4072439 is an apocalyptic number.

4072439 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

4072439 is a deficient number, since it is larger than the sum of its proper divisors (842761).

4072439 is an equidigital number, since it uses as much as digits as its factorization.

4072439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 4072439 is about 2018.0284933568. The cubic root of 4072439 is about 159.6926260317.

The spelling of 4072439 in words is "four million, seventy-two thousand, four hundred thirty-nine".