20242634 has 4 divisors (see below), whose sum is σ = 30363954. Its totient is φ = 10121316.

The previous prime is 20242603. The next prime is 20242687. The reversal of 20242634 is 43624202.

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., 17197609 + 3045025 = 4147^2 + 1745^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5060657 + ... + 5060660.

Almost surely, 2^20242634 is an apocalyptic number.

20242634 is a deficient number, since it is larger than the sum of its proper divisors (10121320).

20242634 is a wasteful number, since it uses less digits than its factorization.

20242634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10121319.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 20242634 is about 4499.1814811141. The cubic root of 20242634 is about 272.5350357556.

Adding to 20242634 its reverse (43624202), we get a palindrome (63866836).

The spelling of 20242634 in words is "twenty million, two hundred forty-two thousand, six hundred thirty-four".