24020039 has 4 divisors (see below), whose sum is σ = 24125160. Its totient is φ = 23914920.

The previous prime is 24020011. The next prime is 24020057. The reversal of 24020039 is 93002042.

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

It is a cyclic number.

It is not a de Polignac number, because 24020039 - 2²⁰ = 22971463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 24020039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24020069) 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, 52217 + ... + 52674.

It is an arithmetic number, because the mean of its divisors is an integer number (6031290).

Almost surely, 2^24020039 is an apocalyptic number.

24020039 is a deficient number, since it is larger than the sum of its proper divisors (105121).

24020039 is a wasteful number, since it uses less digits than its factorization.

24020039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105120.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 24020039 is about 4901.0242806989. The cubic root of 24020039 is about 288.5301729478.

The spelling of 24020039 in words is "twenty-four million, twenty thousand, thirty-nine".