423872500 has 60 divisors (see below), whose sum is σ = 948721312. Its totient is φ = 165564000.

The previous prime is 423872459. The next prime is 423872503. The reversal of 423872500 is 5278324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423872503) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 105529 + ... + 109471.

Almost surely, 2^423872500 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 423872500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (474360656).

423872500 is an abundant number, since it is smaller than the sum of its proper divisors (524848812).

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

423872500 is a wasteful number, since it uses less digits than its factorization.

423872500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010 (or 3993 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 423872500 is about 20588.1640755071. The cubic root of 423872500 is about 751.1818403965.

The spelling of 423872500 in words is "four hundred twenty-three million, eight hundred seventy-two thousand, five hundred".