20124434 has 16 divisors (see below), whose sum is σ = 34067520. Its totient is φ = 8831760.

The previous prime is 20124409. The next prime is 20124437. The reversal of 20124434 is 43442102.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20124437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15134 + ... + 16409.

It is an arithmetic number, because the mean of its divisors is an integer number (2129220).

Almost surely, 2^20124434 is an apocalyptic number.

20124434 is a deficient number, since it is larger than the sum of its proper divisors (13943086).

20124434 is a wasteful number, since it uses less digits than its factorization.

20124434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31585.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 20124434 is about 4486.0265268944. The cubic root of 20124434 is about 272.0035412601.

Adding to 20124434 its reverse (43442102), we get a palindrome (63566536).

It can be divided in two parts, 2012 and 4434, that added together give a palindrome (6446).

The spelling of 20124434 in words is "twenty million, one hundred twenty-four thousand, four hundred thirty-four".