4169439 has 12 divisors (see below), whose sum is σ = 6047496. Its totient is φ = 2768112.

The previous prime is 4169423. The next prime is 4169441. The reversal of 4169439 is 9349614.

It is not a de Polignac number, because 4169439 - 2⁴ = 4169423 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

4169439 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4161439) 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, 1729 + ... + 3365.

It is an arithmetic number, because the mean of its divisors is an integer number (503958).

Almost surely, 2^4169439 is an apocalyptic number.

4169439 is a deficient number, since it is larger than the sum of its proper divisors (1878057).

4169439 is a wasteful number, since it uses less digits than its factorization.

4169439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926 (or 1923 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 4169439 is about 2041.9204196050. The cubic root of 4169439 is about 160.9505783006.

The spelling of 4169439 in words is "four million, one hundred sixty-nine thousand, four hundred thirty-nine".