423985500 has 72 divisors (see below), whose sum is σ = 1337547120. Its totient is φ = 113061600.

The previous prime is 423985483. The next prime is 423985537. The reversal of 423985500 is 5589324.

423985500 is a `hidden beast` number, since 42 + 39 + 85 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 42610 + ... + 51609.

Almost surely, 2^423985500 is an apocalyptic number.

It is an amenable number.

423985500 is an abundant number, since it is smaller than the sum of its proper divisors (913561620).

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

423985500 is a wasteful number, since it uses less digits than its factorization.

423985500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94244 (or 94229 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 423985500 is about 20590.9081878386. The cubic root of 423985500 is about 751.2485868876.

The spelling of 423985500 in words is "four hundred twenty-three million, nine hundred eighty-five thousand, five hundred".