384545880 has 80 divisors (see below), whose sum is σ = 1292512320. Its totient is φ = 102544704.

The previous prime is 384545873. The next prime is 384545911. The reversal of 384545880 is 88545483.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 56104 + ... + 62583.

It is an arithmetic number, because the mean of its divisors is an integer number (16156404).

Almost surely, 2^384545880 is an apocalyptic number.

384545880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

384545880 is an abundant number, since it is smaller than the sum of its proper divisors (907966440).

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

384545880 is a wasteful number, since it uses less digits than its factorization.

384545880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118710 (or 118697 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The square root of 384545880 is about 19609.8414068039. The cubic root of 384545880 is about 727.1924941224.

The spelling of 384545880 in words is "three hundred eighty-four million, five hundred forty-five thousand, eight hundred eighty".