423459372 has 72 divisors (see below), whose sum is σ = 1153339824. Its totient is φ = 120572928.

The previous prime is 423459359. The next prime is 423459373. The reversal of 423459372 is 273954324.

It is a self number, because there is not a number n which added to its sum of digits gives 423459372.

It is not an unprimeable number, because it can be changed into a prime (423459373) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197088 + ... + 199224.

Almost surely, 2^423459372 is an apocalyptic number.

423459372 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423459372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (576669912).

423459372 is an abundant number, since it is smaller than the sum of its proper divisors (729880452).

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

423459372 is a wasteful number, since it uses less digits than its factorization.

423459372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495 (or 2486 counting only the distinct ones).

The product of its digits is 181440, while the sum is 39.

The square root of 423459372 is about 20578.1284863323. The cubic root of 423459372 is about 750.9377142119.

The spelling of 423459372 in words is "four hundred twenty-three million, four hundred fifty-nine thousand, three hundred seventy-two".