20474233 has 8 divisors (see below), whose sum is σ = 22253000. Its totient is φ = 18724608.

The previous prime is 20474221. The next prime is 20474249. The reversal of 20474233 is 33247402.

It can be written as a sum of positive squares in 4 ways, for example, as 7166329 + 13307904 = 2677^2 + 3648^2 .

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 20474233 - 2⁹ = 20473721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20474198 and 20474207.

It is not an unprimeable number, because it can be changed into a prime (20474263) 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, 5808 + ... + 8641.

It is an arithmetic number, because the mean of its divisors is an integer number (2781625).

Almost surely, 2^20474233 is an apocalyptic number.

It is an amenable number.

20474233 is a deficient number, since it is larger than the sum of its proper divisors (1778767).

20474233 is a wasteful number, since it uses less digits than its factorization.

20474233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14571.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 20474233 is about 4524.8461852311. The cubic root of 20474233 is about 273.5704682468.

The spelling of 20474233 in words is "twenty million, four hundred seventy-four thousand, two hundred thirty-three".