20244705 has 64 divisors (see below), whose sum is σ = 38320128. Its totient is φ = 9031680.

The previous prime is 20244691. The next prime is 20244713. The reversal of 20244705 is 50744202.

It is not a de Polignac number, because 20244705 - 2⁵ = 20244673 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 102667 + ... + 102863.

It is an arithmetic number, because the mean of its divisors is an integer number (598752).

Almost surely, 2^20244705 is an apocalyptic number.

It is an amenable number.

20244705 is a deficient number, since it is larger than the sum of its proper divisors (18075423).

20244705 is a wasteful number, since it uses less digits than its factorization.

20244705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 20244705 is about 4499.4116282021. The cubic root of 20244705 is about 272.5443296846.

Adding to 20244705 its reverse (50744202), we get a palindrome (70988907).

The spelling of 20244705 in words is "twenty million, two hundred forty-four thousand, seven hundred five".