20423202 has 16 divisors (see below), whose sum is σ = 40917312. Its totient is φ = 6795920.

The previous prime is 20423201. The next prime is 20423209. The reversal of 20423202 is 20232402.

It is not an unprimeable number, because it can be changed into a prime (20423201) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1252 + ... + 6512.

It is an arithmetic number, because the mean of its divisors is an integer number (2557332).

Almost surely, 2^20423202 is an apocalyptic number.

20423202 is an abundant number, since it is smaller than the sum of its proper divisors (20494110).

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

20423202 is a wasteful number, since it uses less digits than its factorization.

20423202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5913.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 20423202 is about 4519.2036909172. The cubic root of 20423202 is about 273.3429922557.

Adding to 20423202 its reverse (20232402), we get a palindrome (40655604).

The spelling of 20423202 in words is "twenty million, four hundred twenty-three thousand, two hundred two".