20450022 has 8 divisors (see below), whose sum is σ = 40900056. Its totient is φ = 6816672.

The previous prime is 20450009. The next prime is 20450033. The reversal of 20450022 is 22005402.

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

20450022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20449983 and 20450010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1704163 + ... + 1704174.

It is an arithmetic number, because the mean of its divisors is an integer number (5112507).

Almost surely, 2^20450022 is an apocalyptic number.

20450022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20450022 is a wasteful number, since it uses less digits than its factorization.

20450022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3408342.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 20450022 is about 4522.1700542992. The cubic root of 20450022 is about 273.4625923770.

Adding to 20450022 its reverse (22005402), we get a palindrome (42455424).

The spelling of 20450022 in words is "twenty million, four hundred fifty thousand, twenty-two".