20242834 has 4 divisors (see below), whose sum is σ = 30364254. Its totient is φ = 10121416.

The previous prime is 20242793. The next prime is 20242861. The reversal of 20242834 is 43824202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43824202 = 2 ⋅21912101.

It can be written as a sum of positive squares in only one way, i.e., 10909809 + 9333025 = 3303^2 + 3055^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20242799 and 20242808.

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, 5060707 + ... + 5060710.

Almost surely, 2^20242834 is an apocalyptic number.

20242834 is a deficient number, since it is larger than the sum of its proper divisors (10121420).

20242834 is a wasteful number, since it uses less digits than its factorization.

20242834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10121419.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 20242834 is about 4499.2037073242. The cubic root of 20242834 is about 272.5359333138.

The spelling of 20242834 in words is "twenty million, two hundred forty-two thousand, eight hundred thirty-four".