423508519 has 12 divisors (see below), whose sum is σ = 497019024. Its totient is φ = 359790144.

The previous prime is 423508507. The next prime is 423508559. The reversal of 423508519 is 915805324.

It is not a de Polignac number, because 423508519 - 2⁵ = 423508487 is a prime.

It is a super-2 number, since 2×423508519² = 358718931331146722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423508559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32707 + ... + 43780.

It is an arithmetic number, because the mean of its divisors is an integer number (41418252).

Almost surely, 2^423508519 is an apocalyptic number.

423508519 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

423508519 is a deficient number, since it is larger than the sum of its proper divisors (73510505).

423508519 is a wasteful number, since it uses less digits than its factorization.

423508519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76614 (or 76607 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 423508519 is about 20579.3226078994. The cubic root of 423508519 is about 750.9667645456.

The spelling of 423508519 in words is "four hundred twenty-three million, five hundred eight thousand, five hundred nineteen".