11800042 has 8 divisors (see below), whose sum is σ = 18310500. Its totient is φ = 5696544.

The previous prime is 11800037. The next prime is 11800043. The reversal of 11800042 is 24000811.

It is a happy number.

11800042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11485321 + 314721 = 3389^2 + 561^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 11799989 and 11800025.

It is not an unprimeable number, because it can be changed into a prime (11800043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101667 + ... + 101782.

Almost surely, 2^11800042 is an apocalyptic number.

11800042 is a deficient number, since it is larger than the sum of its proper divisors (6510458).

11800042 is a wasteful number, since it uses less digits than its factorization.

11800042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203480.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 11800042 is about 3435.1189207944. The cubic root of 11800042 is about 227.6640816055.

Adding to 11800042 its reverse (24000811), we get a palindrome (35800853).

The spelling of 11800042 in words is "eleven million, eight hundred thousand, forty-two".