20427024 has 20 divisors (see below), whose sum is σ = 52769936. Its totient is φ = 6808992.

The previous prime is 20427007. The next prime is 20427031. The reversal of 20427024 is 42072402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212734 + ... + 212829.

Almost surely, 2^20427024 is an apocalyptic number.

20427024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20427024 is an abundant number, since it is smaller than the sum of its proper divisors (32342912).

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

20427024 is a wasteful number, since it uses less digits than its factorization.

20427024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425574 (or 425568 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 20427024 is about 4519.6265332436. The cubic root of 20427024 is about 273.3600423368.

Adding to 20427024 its reverse (42072402), we get a palindrome (62499426).

The spelling of 20427024 in words is "twenty million, four hundred twenty-seven thousand, twenty-four".