20850486 has 16 divisors (see below), whose sum is σ = 43896000. Its totient is φ = 6584328.

The previous prime is 20850463. The next prime is 20850491. The reversal of 20850486 is 68405802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91336 + ... + 91563.

It is an arithmetic number, because the mean of its divisors is an integer number (2743500).

Almost surely, 2^20850486 is an apocalyptic number.

20850486 is an abundant number, since it is smaller than the sum of its proper divisors (23045514).

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

20850486 is a wasteful number, since it uses less digits than its factorization.

20850486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182923.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 20850486 is about 4566.2332397721. The cubic root of 20850486 is about 275.2360991692.

The spelling of 20850486 in words is "twenty million, eight hundred fifty thousand, four hundred eighty-six".