384778468 has 12 divisors (see below), whose sum is σ = 675924480. Its totient is φ = 191657192.

The previous prime is 384778453. The next prime is 384778483. The reversal of 384778468 is 864877483.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (384778453) and next prime (384778483).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181828 + ... + 183931.

It is an arithmetic number, because the mean of its divisors is an integer number (56327040).

Almost surely, 2^384778468 is an apocalyptic number.

It is an amenable number.

384778468 is a deficient number, since it is larger than the sum of its proper divisors (291146012).

384778468 is a wasteful number, since it uses less digits than its factorization.

384778468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366026 (or 366024 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 55.

The square root of 384778468 is about 19615.7708999672. The cubic root of 384778468 is about 727.3390758162.

The spelling of 384778468 in words is "three hundred eighty-four million, seven hundred seventy-eight thousand, four hundred sixty-eight".