20024045 has 8 divisors (see below), whose sum is σ = 25442424. Its totient is φ = 15076864.

The previous prime is 20024009. The next prime is 20024077. The reversal of 20024045 is 54042002.

It can be written as a sum of positive squares in 4 ways, for example, as 1473796 + 18550249 = 1214^2 + 4307^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20024045 - 2⁶ = 20023981 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117704 + ... + 117873.

It is an arithmetic number, because the mean of its divisors is an integer number (3180303).

Almost surely, 2^20024045 is an apocalyptic number.

It is an amenable number.

20024045 is a deficient number, since it is larger than the sum of its proper divisors (5418379).

20024045 is a wasteful number, since it uses less digits than its factorization.

20024045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235599.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 20024045 is about 4474.8234602049. The cubic root of 20024045 is about 271.5504983809.

Adding to 20024045 its reverse (54042002), we get a palindrome (74066047).

The spelling of 20024045 in words is "twenty million, twenty-four thousand, forty-five".