11390218 has 16 divisors (see below), whose sum is σ = 19577664. Its totient is φ = 4868640.

The previous prime is 11390213. The next prime is 11390261. The reversal of 11390218 is 81209311.

11390218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11390192 and 11390201.

It is not an unprimeable number, because it can be changed into a prime (11390213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6046 + ... + 7702.

It is an arithmetic number, because the mean of its divisors is an integer number (1223604).

Almost surely, 2^11390218 is an apocalyptic number.

11390218 is a deficient number, since it is larger than the sum of its proper divisors (8187446).

11390218 is a wasteful number, since it uses less digits than its factorization.

11390218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 11390218 is about 3374.9397031651. The cubic root of 11390218 is about 224.9973201327.

Adding to 11390218 its reverse (81209311), we get a palindrome (92599529).

The spelling of 11390218 in words is "eleven million, three hundred ninety thousand, two hundred eighteen".