20475834 has 16 divisors (see below), whose sum is σ = 41086272. Its totient is φ = 6802848.

The previous prime is 20475817. The next prime is 20475839. The reversal of 20475834 is 43857402.

It is a junction number, because it is equal to n+sod(n) for n = 20475795 and 20475804.

It is not an unprimeable number, because it can be changed into a prime (20475839) 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, 3574 + ... + 7329.

It is an arithmetic number, because the mean of its divisors is an integer number (2567892).

Almost surely, 2^20475834 is an apocalyptic number.

20475834 is an abundant number, since it is smaller than the sum of its proper divisors (20610438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20475834 is a wasteful number, since it uses less digits than its factorization.

20475834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11221.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 20475834 is about 4525.0230938637. The cubic root of 20475834 is about 273.5775987524.

The spelling of 20475834 in words is "twenty million, four hundred seventy-five thousand, eight hundred thirty-four".