20013422 has 64 divisors (see below), whose sum is σ = 38707200. Its totient is φ = 7620480.

The previous prime is 20013421. The next prime is 20013439. The reversal of 20013422 is 22431002.

It is a junction number, because it is equal to n+sod(n) for n = 20013397 and 20013406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157523 + ... + 157649.

It is an arithmetic number, because the mean of its divisors is an integer number (604800).

Almost surely, 2^20013422 is an apocalyptic number.

20013422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20013422 is a deficient number, since it is larger than the sum of its proper divisors (18693778).

20013422 is a wasteful number, since it uses less digits than its factorization.

20013422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201.

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

The square root of 20013422 is about 4473.6363285363. The cubic root of 20013422 is about 271.5024696032.

Adding to 20013422 its reverse (22431002), we get a palindrome (42444424).

The spelling of 20013422 in words is "twenty million, thirteen thousand, four hundred twenty-two".