20332045 has 8 divisors (see below), whose sum is σ = 25239960. Its totient is φ = 15704640.

The previous prime is 20332043. The next prime is 20332079. The reversal of 20332045 is 54023302.

It can be written as a sum of positive squares in 4 ways, for example, as 857476 + 19474569 = 926^2 + 4413^2 .

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

It is not a de Polignac number, because 20332045 - 2¹ = 20332043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20332043) by changing a digit.

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, 69966 + ... + 70255.

It is an arithmetic number, because the mean of its divisors is an integer number (3154995).

Almost surely, 2^20332045 is an apocalyptic number.

It is an amenable number.

20332045 is a deficient number, since it is larger than the sum of its proper divisors (4907915).

20332045 is a wasteful number, since it uses less digits than its factorization.

20332045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140255.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 20332045 is about 4509.1068960494. The cubic root of 20332045 is about 272.9357056301.

Adding to 20332045 its reverse (54023302), we get a palindrome (74355347).

The spelling of 20332045 in words is "twenty million, three hundred thirty-two thousand, forty-five".