20244769 has 4 divisors (see below), whose sum is σ = 20273344. Its totient is φ = 20216196.

The previous prime is 20244751. The next prime is 20244793. The reversal of 20244769 is 96744202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20244769 - 2⁷ = 20244641 is a prime.

It is a super-2 number, since 2×20244769² = 819701343726722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20244799) 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, 13197 + ... + 14650.

It is an arithmetic number, because the mean of its divisors is an integer number (5068336).

Almost surely, 2^20244769 is an apocalyptic number.

It is an amenable number.

20244769 is a deficient number, since it is larger than the sum of its proper divisors (28575).

20244769 is an equidigital number, since it uses as much as digits as its factorization.

20244769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28574.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 20244769 is about 4499.4187402375. The cubic root of 20244769 is about 272.5446168843.

The spelling of 20244769 in words is "twenty million, two hundred forty-four thousand, seven hundred sixty-nine".