20112424 has 8 divisors (see below), whose sum is σ = 37710810. Its totient is φ = 10056208.

The previous prime is 20112413. The next prime is 20112439. The reversal of 20112424 is 42421102.

It can be written as a sum of positive squares in only one way, i.e., 13089924 + 7022500 = 3618^2 + 2650^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20112398 and 20112407.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257019 + ... + 1257034.

Almost surely, 2^20112424 is an apocalyptic number.

It is an amenable number.

20112424 is a deficient number, since it is larger than the sum of its proper divisors (17598386).

20112424 is a wasteful number, since it uses less digits than its factorization.

20112424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514059 (or 2514055 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 20112424 is about 4484.6877260295. The cubic root of 20112424 is about 271.9494211028.

Adding to 20112424 its reverse (42421102), we get a palindrome (62533526).

The spelling of 20112424 in words is "twenty million, one hundred twelve thousand, four hundred twenty-four".