20244843 has 8 divisors (see below), whose sum is σ = 29992400. Its totient is φ = 13496544.

The previous prime is 20244839. The next prime is 20244859. The reversal of 20244843 is 34844202.

It is a happy number.

It is not a de Polignac number, because 20244843 - 2² = 20244839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 749809 = 20244843 / (2 + 0 + 2 + 4 + 4 + 8 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20244893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374878 + ... + 374931.

It is an arithmetic number, because the mean of its divisors is an integer number (3749050).

Almost surely, 2^20244843 is an apocalyptic number.

20244843 is a deficient number, since it is larger than the sum of its proper divisors (9747557).

20244843 is an equidigital number, since it uses as much as digits as its factorization.

20244843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749818 (or 749812 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 20244843 is about 4499.4269635144. The cubic root of 20244843 is about 272.5449489582.

The spelling of 20244843 in words is "twenty million, two hundred forty-four thousand, eight hundred forty-three".