20229722 has 8 divisors (see below), whose sum is σ = 30374976. Its totient is φ = 10104732.

The previous prime is 20229721. The next prime is 20229731. The reversal of 20229722 is 22792202.

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

It is a junction number, because it is equal to n+sod(n) for n = 20229691 and 20229700.

It is not an unprimeable number, because it can be changed into a prime (20229721) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2258 + ... + 6749.

It is an arithmetic number, because the mean of its divisors is an integer number (3796872).

Almost surely, 2^20229722 is an apocalyptic number.

20229722 is a deficient number, since it is larger than the sum of its proper divisors (10145254).

20229722 is a wasteful number, since it uses less digits than its factorization.

20229722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10132.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 20229722 is about 4497.7463245497. The cubic root of 20229722 is about 272.4770768810.

The spelling of 20229722 in words is "twenty million, two hundred twenty-nine thousand, seven hundred twenty-two".