20244448 has 36 divisors (see below), whose sum is σ = 46366992. Its totient is φ = 8675520.

The previous prime is 20244431. The next prime is 20244449. The reversal of 20244448 is 84444202.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20244449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4888 + ... + 8023.

It is an arithmetic number, because the mean of its divisors is an integer number (1287972).

Almost surely, 2^20244448 is an apocalyptic number.

20244448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20244448 is an abundant number, since it is smaller than the sum of its proper divisors (26122544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20244448 is a wasteful number, since it uses less digits than its factorization.

20244448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12935 (or 12920 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

The square root of 20244448 is about 4499.3830688218. The cubic root of 20244448 is about 272.5431763923.

The spelling of 20244448 in words is "twenty million, two hundred forty-four thousand, four hundred forty-eight".