20744448 has 36 divisors (see below), whose sum is σ = 55212528. Its totient is φ = 6914560.

The previous prime is 20744443. The next prime is 20744467. The reversal of 20744448 is 84444702.

It is not an unprimeable number, because it can be changed into a prime (20744443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12738 + ... + 14273.

Almost surely, 2^20744448 is an apocalyptic number.

It is an amenable number.

20744448 is an abundant number, since it is smaller than the sum of its proper divisors (34468080).

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

20744448 is an equidigital number, since it uses as much as digits as its factorization.

20744448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27030 (or 27016 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 33.

The square root of 20744448 is about 4554.6073376308. The cubic root of 20744448 is about 274.7687223522.

The spelling of 20744448 in words is "twenty million, seven hundred forty-four thousand, four hundred forty-eight".