11442220 has 24 divisors (see below), whose sum is σ = 24174864. Its totient is φ = 4549056.

The previous prime is 11442209. The next prime is 11442227. The reversal of 11442220 is 2224411.

It is a junction number, because it is equal to n+sod(n) for n = 11442194 and 11442203.

It is not an unprimeable number, because it can be changed into a prime (11442227) 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 7 ways as a sum of consecutive naturals, for example, 1807 + ... + 5113.

It is an arithmetic number, because the mean of its divisors is an integer number (1007286).

Almost surely, 2^11442220 is an apocalyptic number.

11442220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11442220 is an abundant number, since it is smaller than the sum of its proper divisors (12732644).

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

11442220 is a wasteful number, since it uses less digits than its factorization.

11442220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3489 (or 3487 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 11442220 is about 3382.6350675176. The cubic root of 11442220 is about 225.3392085191.

Adding to 11442220 its reverse (2224411), we get a palindrome (13666631).

It can be divided in two parts, 1144 and 2220, that added together give a square (3364 = 58²).

The spelling of 11442220 in words is "eleven million, four hundred forty-two thousand, two hundred twenty".