423508039 has 16 divisors (see below), whose sum is σ = 447828480. Its totient is φ = 399722400.

The previous prime is 423508037. The next prime is 423508051. The reversal of 423508039 is 930805324.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 423508039 - 2¹ = 423508037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423507995 and 423508013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423508037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 683872 + ... + 684490.

It is an arithmetic number, because the mean of its divisors is an integer number (27989280).

Almost surely, 2^423508039 is an apocalyptic number.

423508039 is a deficient number, since it is larger than the sum of its proper divisors (24320441).

423508039 is a wasteful number, since it uses less digits than its factorization.

423508039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 423508039 is about 20579.3109457047. The cubic root of 423508039 is about 750.9664808329.

The spelling of 423508039 in words is "four hundred twenty-three million, five hundred eight thousand, thirty-nine".