20468474 has 16 divisors (see below), whose sum is σ = 33959688. Its totient is φ = 9191232.

The previous prime is 20468467. The next prime is 20468507. The reversal of 20468474 is 47486402.

It can be written as a sum of positive squares in 4 ways, for example, as 13140625 + 7327849 = 3625^2 + 2707^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

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, 9677 + ... + 11600.

Almost surely, 2^20468474 is an apocalyptic number.

20468474 is a deficient number, since it is larger than the sum of its proper divisors (13491214).

20468474 is a wasteful number, since it uses less digits than its factorization.

20468474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21329.

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 20468474 is about 4524.2097652518. The cubic root of 20468474 is about 273.5448158398.

The spelling of 20468474 in words is "twenty million, four hundred sixty-eight thousand, four hundred seventy-four".