423500305404 has 72 divisors (see below), whose sum is σ = 1087982985600. Its totient is φ = 128118916640.

The previous prime is 423500305399. The next prime is 423500305447. The reversal of 423500305404 is 404503005324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 626287 + ... + 1113209.

It is an arithmetic number, because the mean of its divisors is an integer number (15110874800).

Almost surely, 2^423500305404 is an apocalyptic number.

423500305404 is a gapful number since it is divisible by the number (44) 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 423500305404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (543991492800).

423500305404 is an abundant number, since it is smaller than the sum of its proper divisors (664482680196).

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

423500305404 is a wasteful number, since it uses less digits than its factorization.

423500305404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487551 (or 487538 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

The spelling of 423500305404 in words is "four hundred twenty-three billion, five hundred million, three hundred five thousand, four hundred four".