11478442 has 8 divisors (see below), whose sum is σ = 17637732. Its totient is φ = 5599200.

The previous prime is 11478433. The next prime is 11478443. The reversal of 11478442 is 24487411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7230721 + 4247721 = 2689^2 + 2061^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11478443) 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 3 ways as a sum of consecutive naturals, for example, 69909 + ... + 70072.

Almost surely, 2^11478442 is an apocalyptic number.

11478442 is a deficient number, since it is larger than the sum of its proper divisors (6159290).

11478442 is a wasteful number, since it uses less digits than its factorization.

11478442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140024.

The product of its digits is 7168, while the sum is 31.

The square root of 11478442 is about 3387.9849468379. The cubic root of 11478442 is about 225.5767393192.

The spelling of 11478442 in words is "eleven million, four hundred seventy-eight thousand, four hundred forty-two".