4145439 has 8 divisors (see below), whose sum is σ = 5818240. Its totient is φ = 2618136.

The previous prime is 4145423. The next prime is 4145459. The reversal of 4145439 is 9345414.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4145439 - 2⁴ = 4145423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4145419) 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 7 ways as a sum of consecutive naturals, for example, 36307 + ... + 36420.

It is an arithmetic number, because the mean of its divisors is an integer number (727280).

Almost surely, 2^4145439 is an apocalyptic number.

4145439 is a deficient number, since it is larger than the sum of its proper divisors (1672801).

4145439 is a wasteful number, since it uses less digits than its factorization.

4145439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72749.

The product of its digits is 8640, while the sum is 30.

The square root of 4145439 is about 2036.0351175753. The cubic root of 4145439 is about 160.6411642249.

The spelling of 4145439 in words is "four million, one hundred forty-five thousand, four hundred thirty-nine".