383485920 has 48 divisors (see below), whose sum is σ = 1207982160. Its totient is φ = 102262784.

The previous prime is 383485909. The next prime is 383485943. The reversal of 383485920 is 29584383.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×383485920² = 294122901676492800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398985 + ... + 399944.

It is an arithmetic number, because the mean of its divisors is an integer number (25166295).

Almost surely, 2^383485920 is an apocalyptic number.

383485920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

383485920 is an abundant number, since it is smaller than the sum of its proper divisors (824496240).

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

383485920 is a wasteful number, since it uses less digits than its factorization.

383485920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798947 (or 798939 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 383485920 is about 19582.7965316499. The cubic root of 383485920 is about 726.5237362554.

The spelling of 383485920 in words is "three hundred eighty-three million, four hundred eighty-five thousand, nine hundred twenty".