11318420 has 12 divisors (see below), whose sum is σ = 23768724. Its totient is φ = 4527360.

The previous prime is 11318407. The next prime is 11318423. The reversal of 11318420 is 2481311.

It can be written as a sum of positive squares in 2 ways, for example, as 3678724 + 7639696 = 1918^2 + 2764^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 565921 = 11318420 / (1 + 1 + 3 + 1 + 8 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 11318392 and 11318401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11318423) 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 3 ways as a sum of consecutive naturals, for example, 282941 + ... + 282980.

It is an arithmetic number, because the mean of its divisors is an integer number (1980727).

Almost surely, 2^11318420 is an apocalyptic number.

11318420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11318420 is an abundant number, since it is smaller than the sum of its proper divisors (12450304).

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

11318420 is a wasteful number, since it uses less digits than its factorization.

11318420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565930 (or 565928 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 11318420 is about 3364.2859569305. The cubic root of 11318420 is about 224.5235680107.

Adding to 11318420 its reverse (2481311), we get a palindrome (13799731).

The spelling of 11318420 in words is "eleven million, three hundred eighteen thousand, four hundred twenty".