11404445 has 8 divisors (see below), whose sum is σ = 14738136. Its totient is φ = 8421696.

The previous prime is 11404423. The next prime is 11404447. The reversal of 11404445 is 54440411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2199289 + 9205156 = 1483^2 + 3034^2 .

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 11404445 - 2⁸ = 11404189 is a prime.

It is a super-2 number, since 2×11404445² = 260122731516050, which contains 22 as substring.

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 11404445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11404447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87662 + ... + 87791.

It is an arithmetic number, because the mean of its divisors is an integer number (1842267).

Almost surely, 2^11404445 is an apocalyptic number.

It is an amenable number.

11404445 is a deficient number, since it is larger than the sum of its proper divisors (3333691).

11404445 is a wasteful number, since it uses less digits than its factorization.

11404445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175471.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 11404445 is about 3377.0467867650. The cubic root of 11404445 is about 225.0909591084.

Adding to 11404445 its reverse (54440411), we get a palindrome (65844856).

The spelling of 11404445 in words is "eleven million, four hundred four thousand, four hundred forty-five".