20130422 has 16 divisors (see below), whose sum is σ = 32649792. Its totient is φ = 9253440.

The previous prime is 20130413. The next prime is 20130449. The reversal of 20130422 is 22403102.

It is a junction number, because it is equal to n+sod(n) for n = 20130397 and 20130406.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5618 + ... + 8474.

It is an arithmetic number, because the mean of its divisors is an integer number (2040612).

Almost surely, 2^20130422 is an apocalyptic number.

20130422 is a deficient number, since it is larger than the sum of its proper divisors (12519370).

20130422 is a wasteful number, since it uses less digits than its factorization.

20130422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3143.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20130422 is about 4486.6938830279. The cubic root of 20130422 is about 272.0305166885.

Adding to 20130422 its reverse (22403102), we get a palindrome (42533524).

The spelling of 20130422 in words is "twenty million, one hundred thirty thousand, four hundred twenty-two".