383855000 has 40 divisors (see below), whose sum is σ = 899383980. Its totient is φ = 153540000.

The previous prime is 383854973. The next prime is 383855009. The reversal of 383855000 is 558383.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×383855000² = 294689322050000000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383855009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 33386 + ... + 43385.

Almost surely, 2^383855000 is an apocalyptic number.

It is an amenable number.

383855000 is an abundant number, since it is smaller than the sum of its proper divisors (515528980).

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

383855000 is an equidigital number, since it uses as much as digits as its factorization.

383855000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76797 (or 76778 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 383855000 is about 19592.2178428069. The cubic root of 383855000 is about 726.7567386409.

The spelling of 383855000 in words is "three hundred eighty-three million, eight hundred fifty-five thousand".