11390445 has 24 divisors (see below), whose sum is σ = 21539232. Its totient is φ = 5522400.

The previous prime is 11390441. The next prime is 11390453. The reversal of 11390445 is 54409311.

It is not a de Polignac number, because 11390445 - 2² = 11390441 is a prime.

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 (11390441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11011 + ... + 12000.

It is an arithmetic number, because the mean of its divisors is an integer number (897468).

Almost surely, 2^11390445 is an apocalyptic number.

11390445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11390445 is a deficient number, since it is larger than the sum of its proper divisors (10148787).

11390445 is a wasteful number, since it uses less digits than its factorization.

11390445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23033 (or 23030 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 11390445 is about 3374.9733332280. The cubic root of 11390445 is about 224.9988148086.

Adding to 11390445 its reverse (54409311), we get a palindrome (65799756).

The spelling of 11390445 in words is "eleven million, three hundred ninety thousand, four hundred forty-five".