20448233 has 8 divisors (see below), whose sum is σ = 22085448. Its totient is φ = 18820224.

The previous prime is 20448227. The next prime is 20448247. The reversal of 20448233 is 33284402.

It can be written as a sum of positive squares in 4 ways, for example, as 3736489 + 16711744 = 1933^2 + 4088^2 .

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 20448233 - 2¹⁶ = 20382697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20448203) 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, 2741 + ... + 6957.

It is an arithmetic number, because the mean of its divisors is an integer number (2760681).

Almost surely, 2^20448233 is an apocalyptic number.

It is an amenable number.

20448233 is a deficient number, since it is larger than the sum of its proper divisors (1637215).

20448233 is a wasteful number, since it uses less digits than its factorization.

20448233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4603.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 20448233 is about 4521.9722467083. The cubic root of 20448233 is about 273.4546178323.

The spelling of 20448233 in words is "twenty million, four hundred forty-eight thousand, two hundred thirty-three".