20427048 has 72 divisors (see below), whose sum is σ = 56945070. Its totient is φ = 6614400.

The previous prime is 20427041. The next prime is 20427067. The reversal of 20427048 is 84072402.

It can be written as a sum of positive squares in 3 ways, for example, as 20088324 + 338724 = 4482^2 + 582^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (20427041) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 202198 + ... + 202298.

Almost surely, 2^20427048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20427048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28472535).

20427048 is an abundant number, since it is smaller than the sum of its proper divisors (36518022).

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

20427048 is a wasteful number, since it uses less digits than its factorization.

20427048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 20427048 is about 4519.6291883295. The cubic root of 20427048 is about 273.3601493950.

The spelling of 20427048 in words is "twenty million, four hundred twenty-seven thousand, forty-eight".