20946722 has 8 divisors (see below), whose sum is σ = 31439772. Its totient is φ = 10466800.

The previous prime is 20946707. The next prime is 20946743. The reversal of 20946722 is 22764902.

It can be written as a sum of positive squares in 2 ways, for example, as 20620681 + 326041 = 4541^2 + 571^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3572 + ... + 7392.

Almost surely, 2^20946722 is an apocalyptic number.

20946722 is a deficient number, since it is larger than the sum of its proper divisors (10493050).

20946722 is a wasteful number, since it uses less digits than its factorization.

20946722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6564.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 20946722 is about 4576.7588968614. The cubic root of 20946722 is about 275.6589026467.

The spelling of 20946722 in words is "twenty million, nine hundred forty-six thousand, seven hundred twenty-two".