20426422 has 8 divisors (see below), whose sum is σ = 31059576. Its totient is φ = 10073232.

The previous prime is 20426389. The next prime is 20426423. The reversal of 20426422 is 22462402.

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 = 20426393 and 20426402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20426423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69808 + ... + 70099.

It is an arithmetic number, because the mean of its divisors is an integer number (3882447).

Almost surely, 2^20426422 is an apocalyptic number.

20426422 is a deficient number, since it is larger than the sum of its proper divisors (10633154).

20426422 is a wasteful number, since it uses less digits than its factorization.

20426422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139982.

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

The square root of 20426422 is about 4519.5599343299. The cubic root of 20426422 is about 273.3573569340.

Adding to 20426422 its reverse (22462402), we get a palindrome (42888824).

It can be divided in two parts, 2042 and 6422, that added together give a square (8464 = 92²).

The spelling of 20426422 in words is "twenty million, four hundred twenty-six thousand, four hundred twenty-two".