11445439 has 8 divisors (see below), whose sum is σ = 11784960. Its totient is φ = 11109336.

The previous prime is 11445419. The next prime is 11445443. The reversal of 11445439 is 93454411.

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

It is a cyclic number.

It is not a de Polignac number, because 11445439 - 2⁵ = 11445407 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11445439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11445419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6954 + ... + 8440.

It is an arithmetic number, because the mean of its divisors is an integer number (1473120).

Almost surely, 2^11445439 is an apocalyptic number.

11445439 is a deficient number, since it is larger than the sum of its proper divisors (339521).

11445439 is a wasteful number, since it uses less digits than its factorization.

11445439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709.

The product of its digits is 8640, while the sum is 31.

The square root of 11445439 is about 3383.1108465435. The cubic root of 11445439 is about 225.3603378367.

The spelling of 11445439 in words is "eleven million, four hundred forty-five thousand, four hundred thirty-nine".