423888512 has 48 divisors (see below), whose sum is σ = 862008630. Its totient is φ = 207575040.

The previous prime is 423888511. The next prime is 423888533. The reversal of 423888512 is 215888324.

It can be written as a sum of positive squares in 3 ways, for example, as 118897216 + 304991296 = 10904^2 + 17464^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 423888512.

It is not an unprimeable number, because it can be changed into a prime (423888511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1819148 + ... + 1819380.

Almost surely, 2^423888512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423888512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431004315).

423888512 is an abundant number, since it is smaller than the sum of its proper divisors (438120118).

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

423888512 is an frugal number, since it uses more digits than its factorization.

423888512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 296 counting only the distinct ones).

The product of its digits is 122880, while the sum is 41.

The square root of 423888512 is about 20588.5529360371. The cubic root of 423888512 is about 751.1912990366.

The spelling of 423888512 in words is "four hundred twenty-three million, eight hundred eighty-eight thousand, five hundred twelve".