4000123424 has 24 divisors (see below), whose sum is σ = 8591174928. Its totient is φ = 1818237760.

The previous prime is 4000123399. The next prime is 4000123429. The reversal of 4000123424 is 4243210004.

It is a junction number, because it is equal to n+sod(n) for n = 4000123396 and 4000123405.

It is not an unprimeable number, because it can be changed into a prime (4000123429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5681642 + ... + 5682345.

It is an arithmetic number, because the mean of its divisors is an integer number (357965622).

Almost surely, 2^4000123424 is an apocalyptic number.

4000123424 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4000123424 is an abundant number, since it is smaller than the sum of its proper divisors (4591051504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4000123424 is a wasteful number, since it uses less digits than its factorization.

4000123424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11364008 (or 11364000 counting only the distinct ones).

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

The square root of 4000123424 is about 63246.5289482356. The cubic root of 4000123424 is about 1587.4173787492.

Adding to 4000123424 its reverse (4243210004), we get a palindrome (8243333428).

The spelling of 4000123424 in words is "four billion, one hundred twenty-three thousand, four hundred twenty-four".