11400444 has 36 divisors (see below), whose sum is σ = 31438680. Its totient is φ = 3454560.

The previous prime is 11400443. The next prime is 11400463. The reversal of 11400444 is 44400411.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11400443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13999 + ... + 14790.

Almost surely, 2^11400444 is an apocalyptic number.

It is an amenable number.

11400444 is an abundant number, since it is smaller than the sum of its proper divisors (20038236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11400444 is a wasteful number, since it uses less digits than its factorization.

11400444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28810 (or 28805 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 11400444 is about 3376.4543533121. The cubic root of 11400444 is about 225.0646332836.

Adding to 11400444 its reverse (44400411), we get a palindrome (55800855).

The spelling of 11400444 in words is "eleven million, four hundred thousand, four hundred forty-four".