11405242 has 8 divisors (see below), whose sum is σ = 17151732. Its totient is φ = 5688000.

The previous prime is 11405239. The next prime is 11405243. The reversal of 11405242 is 24250411.

It can be written as a sum of positive squares in 2 ways, for example, as 9357481 + 2047761 = 3059^2 + 1431^2 .

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 (11405243) 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, 6309 + ... + 7912.

Almost surely, 2^11405242 is an apocalyptic number.

11405242 is a deficient number, since it is larger than the sum of its proper divisors (5746490).

11405242 is a wasteful number, since it uses less digits than its factorization.

11405242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14624.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 11405242 is about 3377.1647872143. The cubic root of 11405242 is about 225.0962024826.

Adding to 11405242 its reverse (24250411), we get a palindrome (35655653).

The spelling of 11405242 in words is "eleven million, four hundred five thousand, two hundred forty-two".