423238500 has 192 divisors, whose sum is σ = 1386927360. Its totient is φ = 111427200.

The previous prime is 423238481. The next prime is 423238507. The reversal of 423238500 is 5832324.

423238500 is a `hidden beast` number, since 423 + 238 + 5 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (423238507) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1444354 + ... + 1444646.

It is an arithmetic number, because the mean of its divisors is an integer number (7223580).

Almost surely, 2^423238500 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 423238500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (693463680).

423238500 is an abundant number, since it is smaller than the sum of its proper divisors (963688860).

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

423238500 is a wasteful number, since it uses less digits than its factorization.

423238500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 423238500 is about 20572.7611175554. The cubic root of 423238500 is about 750.8071310743.

The spelling of 423238500 in words is "four hundred twenty-three million, two hundred thirty-eight thousand, five hundred".