20124812 has 12 divisors (see below), whose sum is σ = 35316960. Its totient is φ = 10034256.

The previous prime is 20124803. The next prime is 20124823. The reversal of 20124812 is 21842102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5387 + ... + 8322.

It is an arithmetic number, because the mean of its divisors is an integer number (2943080).

Almost surely, 2^20124812 is an apocalyptic number.

It is an amenable number.

20124812 is a deficient number, since it is larger than the sum of its proper divisors (15192148).

20124812 is a wasteful number, since it uses less digits than its factorization.

20124812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14080 (or 14078 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 20124812 is about 4486.0686575219. The cubic root of 20124812 is about 272.0052442761.

Adding to 20124812 its reverse (21842102), we get a palindrome (41966914).

The spelling of 20124812 in words is "twenty million, one hundred twenty-four thousand, eight hundred twelve".