384693880 has 32 divisors (see below), whose sum is σ = 893485440. Its totient is φ = 148913280.

The previous prime is 384693851. The next prime is 384693887. The reversal of 384693880 is 88396483.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384693887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153879 + ... + 156358.

It is an arithmetic number, because the mean of its divisors is an integer number (27921420).

Almost surely, 2^384693880 is an apocalyptic number.

It is an amenable number.

384693880 is an abundant number, since it is smaller than the sum of its proper divisors (508791560).

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

384693880 is a wasteful number, since it uses less digits than its factorization.

384693880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310279 (or 310275 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 384693880 is about 19613.6146592106. The cubic root of 384693880 is about 727.2857735728.

The spelling of 384693880 in words is "three hundred eighty-four million, six hundred ninety-three thousand, eight hundred eighty".