13624042 has 4 divisors (see below), whose sum is σ = 20436066. Its totient is φ = 6812020.

The previous prime is 13624033. The next prime is 13624057. The reversal of 13624042 is 24042631.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11162281 + 2461761 = 3341^2 + 1569^2 .

It is a super-2 number, since 2×13624042² = 371229040835528, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3406009 + ... + 3406012.

Almost surely, 2^13624042 is an apocalyptic number.

13624042 is a deficient number, since it is larger than the sum of its proper divisors (6812024).

13624042 is an equidigital number, since it uses as much as digits as its factorization.

13624042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6812023.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 13624042 is about 3691.0759948828. The cubic root of 13624042 is about 238.8372110879.

Adding to 13624042 its reverse (24042631), we get a palindrome (37666673).

The spelling of 13624042 in words is "thirteen million, six hundred twenty-four thousand, forty-two".