11405444 has 6 divisors (see below), whose sum is σ = 19959534. Its totient is φ = 5702720.

The previous prime is 11405431. The next prime is 11405461. The reversal of 11405444 is 44450411.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11303044 + 102400 = 3362^2 + 320^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1425677 + ... + 1425684.

It is an arithmetic number, because the mean of its divisors is an integer number (3326589).

Almost surely, 2^11405444 is an apocalyptic number.

It is an amenable number.

11405444 is a deficient number, since it is larger than the sum of its proper divisors (8554090).

11405444 is a wasteful number, since it uses less digits than its factorization.

11405444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851365 (or 2851363 counting only the distinct ones).

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

The square root of 11405444 is about 3377.1946938250. The cubic root of 11405444 is about 225.0975313792.

Adding to 11405444 its reverse (44450411), we get a palindrome (55855855).

The spelling of 11405444 in words is "eleven million, four hundred five thousand, four hundred forty-four".