20242196 has 12 divisors (see below), whose sum is σ = 38148852. Its totient is φ = 9342528.

The previous prime is 20242177. The next prime is 20242199. The reversal of 20242196 is 69124202.

It can be written as a sum of positive squares in 2 ways, for example, as 7639696 + 12602500 = 2764^2 + 3550^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20242199) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 194585 + ... + 194688.

It is an arithmetic number, because the mean of its divisors is an integer number (3179071).

Almost surely, 2^20242196 is an apocalyptic number.

20242196 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20242196 is a deficient number, since it is larger than the sum of its proper divisors (17906656).

20242196 is a wasteful number, since it uses less digits than its factorization.

20242196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389290 (or 389288 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20242196 is about 4499.1328053304. The cubic root of 20242196 is about 272.5330700824.

Adding to 20242196 its reverse (69124202), we get a palindrome (89366398).

The spelling of 20242196 in words is "twenty million, two hundred forty-two thousand, one hundred ninety-six".