20127424 has 14 divisors (see below), whose sum is σ = 39940484. Its totient is φ = 10063680.

The previous prime is 20127407. The next prime is 20127427. The reversal of 20127424 is 42472102.

It is a happy number.

It is a super-2 number, since 2×20127424² = 810226393751552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20127395 and 20127404.

It is not an unprimeable number, because it can be changed into a prime (20127427) by changing a digit.

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 as a sum of consecutive naturals, namely, 157182 + ... + 157309.

Almost surely, 2^20127424 is an apocalyptic number.

It is an amenable number.

20127424 is a deficient number, since it is larger than the sum of its proper divisors (19813060).

20127424 is an equidigital number, since it uses as much as digits as its factorization.

20127424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314503 (or 314493 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 20127424 is about 4486.3597715743. The cubic root of 20127424 is about 272.0170116235.

Adding to 20127424 its reverse (42472102), we get a palindrome (62599526).

The spelling of 20127424 in words is "twenty million, one hundred twenty-seven thousand, four hundred twenty-four".