20804062 has 4 divisors (see below), whose sum is σ = 31206096. Its totient is φ = 10402030.

The previous prime is 20804059. The next prime is 20804087. The reversal of 20804062 is 26040802.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5201014 + ... + 5201017.

It is an arithmetic number, because the mean of its divisors is an integer number (7801524).

Almost surely, 2^20804062 is an apocalyptic number.

20804062 is a deficient number, since it is larger than the sum of its proper divisors (10402034).

20804062 is a wasteful number, since it uses less digits than its factorization.

20804062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10402033.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 20804062 is about 4561.1470048662. The cubic root of 20804062 is about 275.0316745885.

Adding to 20804062 its reverse (26040802), we get a palindrome (46844864).

The spelling of 20804062 in words is "twenty million, eight hundred four thousand, sixty-two".