11400506 has 16 divisors (see below), whose sum is σ = 19500264. Its totient is φ = 4952064.

The previous prime is 11400503. The next prime is 11400517. The reversal of 11400506 is 60500411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6713281 + 4687225 = 2591^2 + 2165^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (11400503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12455 + ... + 13338.

Almost surely, 2^11400506 is an apocalyptic number.

11400506 is a deficient number, since it is larger than the sum of its proper divisors (8099758).

11400506 is a wasteful number, since it uses less digits than its factorization.

11400506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25825.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 11400506 is about 3376.4635345284. The cubic root of 11400506 is about 225.0650412789.

Adding to 11400506 its reverse (60500411), we get a palindrome (71900917).

The spelling of 11400506 in words is "eleven million, four hundred thousand, five hundred six".