20427008 has 36 divisors (see below), whose sum is σ = 46603200. Its totient is φ = 8753664.

The previous prime is 20427007. The next prime is 20427031. The reversal of 20427008 is 80072402.

It is not an unprimeable number, because it can be changed into a prime (20427007) 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, 3908 + ... + 7491.

Almost surely, 2^20427008 is an apocalyptic number.

20427008 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20427008 is an abundant number, since it is smaller than the sum of its proper divisors (26176192).

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

20427008 is an equidigital number, since it uses as much as digits as its factorization.

20427008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11422 (or 11408 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 20427008 is about 4519.6247631855. The cubic root of 20427008 is about 273.3599709647.

The spelling of 20427008 in words is "twenty million, four hundred twenty-seven thousand, eight".