20124004 has 24 divisors (see below), whose sum is σ = 36388800. Its totient is φ = 9730656.

The previous prime is 20123959. The next prime is 20124007. The reversal of 20124004 is 40042102.

It is not an unprimeable number, because it can be changed into a prime (20124007) 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, 33297 + ... + 33895.

It is an arithmetic number, because the mean of its divisors is an integer number (1516200).

Almost surely, 2^20124004 is an apocalyptic number.

It is an amenable number.

20124004 is a deficient number, since it is larger than the sum of its proper divisors (16264796).

20124004 is a wasteful number, since it uses less digits than its factorization.

20124004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 865 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 20124004 is about 4485.9786000381. The cubic root of 20124004 is about 272.0016039409.

Adding to 20124004 its reverse (40042102), we get a palindrome (60166106).

The spelling of 20124004 in words is "twenty million, one hundred twenty-four thousand, four".