20442622 has 8 divisors (see below), whose sum is σ = 31721400. Its totient is φ = 9868824.

The previous prime is 20442599. The next prime is 20442629. The reversal of 20442622 is 22624402.

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 = 20442593 and 20442602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176172 + ... + 176287.

It is an arithmetic number, because the mean of its divisors is an integer number (3965175).

Almost surely, 2^20442622 is an apocalyptic number.

20442622 is a deficient number, since it is larger than the sum of its proper divisors (11278778).

20442622 is a wasteful number, since it uses less digits than its factorization.

20442622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352490.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 20442622 is about 4521.3517890118. The cubic root of 20442622 is about 273.4296035401.

The spelling of 20442622 in words is "twenty million, four hundred forty-two thousand, six hundred twenty-two".