11442609 has 6 divisors (see below), whose sum is σ = 16528226. Its totient is φ = 7628400.

The previous prime is 11442589. The next prime is 11442611. The reversal of 11442609 is 90624411.

11442609 is a `hidden beast` number, since 1 + 14 + 42 + 609 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11390625 + 51984 = 3375^2 + 228^2 .

It is not a de Polignac number, because 11442609 - 2⁵ = 11442577 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11442659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 635692 + ... + 635709.

Almost surely, 2^11442609 is an apocalyptic number.

It is an amenable number.

11442609 is a deficient number, since it is larger than the sum of its proper divisors (5085617).

11442609 is a wasteful number, since it uses less digits than its factorization.

11442609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271407 (or 1271404 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 11442609 is about 3382.6925665807. The cubic root of 11442609 is about 225.3417621016.

The spelling of 11442609 in words is "eleven million, four hundred forty-two thousand, six hundred nine".