20314642 has 4 divisors (see below), whose sum is σ = 30471966. Its totient is φ = 10157320.

The previous prime is 20314633. The next prime is 20314663. The reversal of 20314642 is 24641302.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19193161 + 1121481 = 4381^2 + 1059^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 as a sum of consecutive naturals, namely, 5078659 + ... + 5078662.

Almost surely, 2^20314642 is an apocalyptic number.

20314642 is a deficient number, since it is larger than the sum of its proper divisors (10157324).

20314642 is a wasteful number, since it uses less digits than its factorization.

20314642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10157323.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 20314642 is about 4507.1767216296. The cubic root of 20314642 is about 272.8578112530.

Adding to 20314642 its reverse (24641302), we get a palindrome (44955944).

The spelling of 20314642 in words is "twenty million, three hundred fourteen thousand, six hundred forty-two".