24020042 has 4 divisors (see below), whose sum is σ = 36030066. Its totient is φ = 12010020.

The previous prime is 24020011. The next prime is 24020057. The reversal of 24020042 is 24002042.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24002042 = 2 ⋅12001021.

It can be written as a sum of positive squares in only one way, i.e., 19175641 + 4844401 = 4379^2 + 2201^2 .

It is a junction number, because it is equal to n+sod(n) for n = 24019999 and 24020026.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005009 + ... + 6005012.

Almost surely, 2^24020042 is an apocalyptic number.

24020042 is a deficient number, since it is larger than the sum of its proper divisors (12010024).

24020042 is a wasteful number, since it uses less digits than its factorization.

24020042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12010023.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 24020042 is about 4901.0245867573. The cubic root of 24020042 is about 288.5301849599.

Adding to 24020042 its reverse (24002042), we get a palindrome (48022084).

The spelling of 24020042 in words is "twenty-four million, twenty thousand, forty-two".