20132242 has 8 divisors (see below), whose sum is σ = 32521356. Its totient is φ = 9291792.

The previous prime is 20132219. The next prime is 20132243. The reversal of 20132242 is 24223102.

It can be written as a sum of positive squares in 2 ways, for example, as 16088121 + 4044121 = 4011^2 + 2011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20132243) 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 3 ways as a sum of consecutive naturals, for example, 387133 + ... + 387184.

Almost surely, 2^20132242 is an apocalyptic number.

20132242 is a deficient number, since it is larger than the sum of its proper divisors (12389114).

20132242 is a wasteful number, since it uses less digits than its factorization.

20132242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774332.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20132242 is about 4486.8967003933. The cubic root of 20132242 is about 272.0387145730.

Adding to 20132242 its reverse (24223102), we get a palindrome (44355344).

The spelling of 20132242 in words is "twenty million, one hundred thirty-two thousand, two hundred forty-two".