20822733 has 12 divisors (see below), whose sum is σ = 30120220. Its totient is φ = 13862016.

The previous prime is 20822717. The next prime is 20822821. The reversal of 20822733 is 33722802.

It can be written as a sum of positive squares in 2 ways, for example, as 6215049 + 14607684 = 2493^2 + 3822^2 .

It is not a de Polignac number, because 20822733 - 2⁴ = 20822717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20822697 and 20822706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20822033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7935 + ... + 10227.

Almost surely, 2^20822733 is an apocalyptic number.

It is an amenable number.

20822733 is a deficient number, since it is larger than the sum of its proper divisors (9297487).

20822733 is a wasteful number, since it uses less digits than its factorization.

20822733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308 (or 3305 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 20822733 is about 4563.1932897917. The cubic root of 20822733 is about 275.1139274511.

The spelling of 20822733 in words is "twenty million, eight hundred twenty-two thousand, seven hundred thirty-three".