20332273 has 8 divisors (see below), whose sum is σ = 22019816. Its totient is φ = 18662400.

The previous prime is 20332271. The next prime is 20332283. The reversal of 20332273 is 37223302.

It can be written as a sum of positive squares in 4 ways, for example, as 3873024 + 16459249 = 1968^2 + 4057^2 .

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 20332273 - 2¹ = 20332271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20332271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1968 + ... + 6673.

It is an arithmetic number, because the mean of its divisors is an integer number (2752477).

Almost surely, 2^20332273 is an apocalyptic number.

It is an amenable number.

20332273 is a deficient number, since it is larger than the sum of its proper divisors (1687543).

20332273 is a wasteful number, since it uses less digits than its factorization.

20332273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8835.

The product of its (nonzero) digits is 1512, while the sum is 22.

The square root of 20332273 is about 4509.1321781469. The cubic root of 20332273 is about 272.9367258440.

Adding to 20332273 its reverse (37223302), we get a palindrome (57555575).

The spelling of 20332273 in words is "twenty million, three hundred thirty-two thousand, two hundred seventy-three".