20073529 has 8 divisors (see below), whose sum is σ = 22969088. Its totient is φ = 17184960.

The previous prime is 20073517. The next prime is 20073533. The reversal of 20073529 is 92537002.

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 20073529 - 2¹¹ = 20071481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20073497 and 20073506.

It is not an unprimeable number, because it can be changed into a prime (20073509) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 8209 + ... + 10369.

It is an arithmetic number, because the mean of its divisors is an integer number (2871136).

Almost surely, 2^20073529 is an apocalyptic number.

It is an amenable number.

20073529 is a deficient number, since it is larger than the sum of its proper divisors (2895559).

20073529 is a wasteful number, since it uses less digits than its factorization.

20073529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3495.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 20073529 is about 4480.3492051402. The cubic root of 20073529 is about 271.7740021912.

It can be divided in two parts, 20073 and 529, that added together give a palindrome (20602).

The spelling of 20073529 in words is "twenty million, seventy-three thousand, five hundred twenty-nine".