20704322 has 4 divisors (see below), whose sum is σ = 31056486. Its totient is φ = 10352160.

The previous prime is 20704309. The next prime is 20704379. The reversal of 20704322 is 22340702.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 13256881 + 7447441 = 3641^2 + 2729^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20704294 and 20704303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5176079 + ... + 5176082.

Almost surely, 2^20704322 is an apocalyptic number.

20704322 is a deficient number, since it is larger than the sum of its proper divisors (10352164).

20704322 is a wasteful number, since it uses less digits than its factorization.

20704322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10352163.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 20704322 is about 4550.2002153751. The cubic root of 20704322 is about 274.5914462252.

The spelling of 20704322 in words is "twenty million, seven hundred four thousand, three hundred twenty-two".