20242073 has 4 divisors (see below), whose sum is σ = 20251188. Its totient is φ = 20232960.

The previous prime is 20242067. The next prime is 20242099. The reversal of 20242073 is 37024202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3489424 + 16752649 = 1868^2 + 4093^2 .

It is a cyclic number.

It is not a de Polignac number, because 20242073 - 2⁶ = 20242009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20242273) 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, 1193 + ... + 6473.

It is an arithmetic number, because the mean of its divisors is an integer number (5062797).

Almost surely, 2^20242073 is an apocalyptic number.

It is an amenable number.

20242073 is a deficient number, since it is larger than the sum of its proper divisors (9115).

20242073 is an equidigital number, since it uses as much as digits as its factorization.

20242073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9114.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 20242073 is about 4499.1191360087. The cubic root of 20242073 is about 272.5325180732.

Adding to 20242073 its reverse (37024202), we get a palindrome (57266275).

The spelling of 20242073 in words is "twenty million, two hundred forty-two thousand, seventy-three".