20804466 has 32 divisors (see below), whose sum is σ = 44489088. Its totient is φ = 6469760.

The previous prime is 20804437. The next prime is 20804473. The reversal of 20804466 is 66440802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3820 + ... + 7496.

It is an arithmetic number, because the mean of its divisors is an integer number (1390284).

Almost surely, 2^20804466 is an apocalyptic number.

20804466 is an abundant number, since it is smaller than the sum of its proper divisors (23684622).

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

20804466 is a wasteful number, since it uses less digits than its factorization.

20804466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3746.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 20804466 is about 4561.1912917570. The cubic root of 20804466 is about 275.0334548831.

The spelling of 20804466 in words is "twenty million, eight hundred four thousand, four hundred sixty-six".