11381446 has 4 divisors (see below), whose sum is σ = 17072172. Its totient is φ = 5690722.

The previous prime is 11381443. The next prime is 11381467. The reversal of 11381446 is 64418311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64418311 = 787 ⋅81853.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11381443) 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, 2845360 + ... + 2845363.

It is an arithmetic number, because the mean of its divisors is an integer number (4268043).

Almost surely, 2^11381446 is an apocalyptic number.

11381446 is a deficient number, since it is larger than the sum of its proper divisors (5690726).

11381446 is an equidigital number, since it uses as much as digits as its factorization.

11381446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5690725.

The product of its digits is 2304, while the sum is 28.

The square root of 11381446 is about 3373.6398740826. The cubic root of 11381446 is about 224.9395458983.

Adding to 11381446 its reverse (64418311), we get a palindrome (75799757).

The spelling of 11381446 in words is "eleven million, three hundred eighty-one thousand, four hundred forty-six".