423744129 has 12 divisors (see below), whose sum is σ = 634744656. Its totient is φ = 282495924.

The previous prime is 423744127. The next prime is 423744173. The reversal of 423744129 is 921447324.

423744129 is a `hidden beast` number, since 4 + 237 + 4 + 412 + 9 = 666.

It is not a de Polignac number, because 423744129 - 2¹ = 423744127 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 423744093 and 423744102.

It is not an unprimeable number, because it can be changed into a prime (423744121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 871659 + ... + 872144.

It is an arithmetic number, because the mean of its divisors is an integer number (52895388).

Almost surely, 2^423744129 is an apocalyptic number.

It is an amenable number.

423744129 is a deficient number, since it is larger than the sum of its proper divisors (211000527).

423744129 is an equidigital number, since it uses as much as digits as its factorization.

423744129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743818 (or 1743806 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 423744129 is about 20585.0462472155. The cubic root of 423744129 is about 751.1060002163.

The spelling of 423744129 in words is "four hundred twenty-three million, seven hundred forty-four thousand, one hundred twenty-nine".