20804302 has 16 divisors (see below), whose sum is σ = 32577552. Its totient is φ = 9954880.

The previous prime is 20804299. The next prime is 20804309. The reversal of 20804302 is 20340802.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20804302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20804309) 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, 1953 + ... + 6739.

It is an arithmetic number, because the mean of its divisors is an integer number (2036097).

Almost surely, 2^20804302 is an apocalyptic number.

20804302 is a deficient number, since it is larger than the sum of its proper divisors (11773250).

20804302 is a wasteful number, since it uses less digits than its factorization.

20804302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4883.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 20804302 is about 4561.1733139621. The cubic root of 20804302 is about 275.0327321920.

The spelling of 20804302 in words is "twenty million, eight hundred four thousand, three hundred two".