20027427 has 16 divisors (see below), whose sum is σ = 31142400. Its totient is φ = 11443656.

The previous prime is 20027419. The next prime is 20027437. The reversal of 20027427 is 72472002.

It is not a de Polignac number, because 20027427 - 2³ = 20027419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20027397 and 20027406.

It is not an unprimeable number, because it can be changed into a prime (20027437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8703 + ... + 10760.

It is an arithmetic number, because the mean of its divisors is an integer number (1946400).

Almost surely, 2^20027427 is an apocalyptic number.

20027427 is a deficient number, since it is larger than the sum of its proper divisors (11114973).

20027427 is an equidigital number, since it uses as much as digits as its factorization.

20027427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19487 (or 19473 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 20027427 is about 4475.2013362529. The cubic root of 20027427 is about 271.5657855367.

Adding to 20027427 its reverse (72472002), we get a palindrome (92499429).

The spelling of 20027427 in words is "twenty million, twenty-seven thousand, four hundred twenty-seven".