11439856 has 10 divisors (see below), whose sum is σ = 22164752. Its totient is φ = 5719920.

The previous prime is 11439853. The next prime is 11439859. The reversal of 11439856 is 65893411.

It is an interprime number because it is at equal distance from previous prime (11439853) and next prime (11439859).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11439851) 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 as a sum of consecutive naturals, namely, 357480 + ... + 357511.

Almost surely, 2^11439856 is an apocalyptic number.

11439856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11439856 is a deficient number, since it is larger than the sum of its proper divisors (10724896).

11439856 is an equidigital number, since it uses as much as digits as its factorization.

11439856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714999 (or 714993 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 11439856 is about 3382.2856177443. The cubic root of 11439856 is about 225.3236888449.

The spelling of 11439856 in words is "eleven million, four hundred thirty-nine thousand, eight hundred fifty-six".