20000422 has 8 divisors (see below), whose sum is σ = 32308416. Its totient is φ = 9230952.

The previous prime is 20000389. The next prime is 20000429. The reversal of 20000422 is 22400002.

It is a happy number.

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 = 20000399 and 20000408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000429) 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, 384598 + ... + 384649.

It is an arithmetic number, because the mean of its divisors is an integer number (4038552).

Almost surely, 2^20000422 is an apocalyptic number.

20000422 is a deficient number, since it is larger than the sum of its proper divisors (12307994).

20000422 is a wasteful number, since it uses less digits than its factorization.

20000422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769262.

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 20000422 is about 4472.1831357850. The cubic root of 20000422 is about 271.4436707865.

Adding to 20000422 its reverse (22400002), we get a palindrome (42400424).

The spelling of 20000422 in words is "twenty million, four hundred twenty-two", and thus it is an aban number.