423823236 has 12 divisors (see below), whose sum is σ = 988920912. Its totient is φ = 141274408.

The previous prime is 423823217. The next prime is 423823249. The reversal of 423823236 is 632328324.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×423823236² = 359252270747023392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423823197 and 423823206.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 17659290 + ... + 17659313.

It is an arithmetic number, because the mean of its divisors is an integer number (82410076).

Almost surely, 2^423823236 is an apocalyptic number.

It is an amenable number.

423823236 is an abundant number, since it is smaller than the sum of its proper divisors (565097676).

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

423823236 is a wasteful number, since it uses less digits than its factorization.

423823236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35318610 (or 35318608 counting only the distinct ones).

The product of its digits is 41472, while the sum is 33.

The square root of 423823236 is about 20586.9676251749. The cubic root of 423823236 is about 751.1527375760.

The spelling of 423823236 in words is "four hundred twenty-three million, eight hundred twenty-three thousand, two hundred thirty-six".