11442213 has 12 divisors (see below), whose sum is σ = 16974828. Its totient is φ = 7421760.

The previous prime is 11442209. The next prime is 11442227. The reversal of 11442213 is 31224411.

11442213 is a `hidden beast` number, since 11 + 442 + 213 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9847044 + 1595169 = 3138^2 + 1263^2 .

It is not a de Polignac number, because 11442213 - 2² = 11442209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11442203) 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 11 ways as a sum of consecutive naturals, for example, 16848 + ... + 17513.

It is an arithmetic number, because the mean of its divisors is an integer number (1414569).

Almost surely, 2^11442213 is an apocalyptic number.

It is an amenable number.

11442213 is a deficient number, since it is larger than the sum of its proper divisors (5532615).

11442213 is a wasteful number, since it uses less digits than its factorization.

11442213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34404 (or 34401 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 11442213 is about 3382.6340328212. The cubic root of 11442213 is about 225.3391625672.

Adding to 11442213 its reverse (31224411), we get a palindrome (42666624).

The spelling of 11442213 in words is "eleven million, four hundred forty-two thousand, two hundred thirteen".