384778484 has 24 divisors (see below), whose sum is σ = 686992488. Its totient is φ = 188519040.

The previous prime is 384778483. The next prime is 384778489. The reversal of 384778484 is 484877483.

It can be written as a sum of positive squares in 4 ways, for example, as 33965584 + 350812900 = 5828^2 + 18730^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384778483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64742 + ... + 70434.

It is an arithmetic number, because the mean of its divisors is an integer number (28624687).

Almost surely, 2^384778484 is an apocalyptic number.

It is an amenable number.

384778484 is a deficient number, since it is larger than the sum of its proper divisors (302214004).

384778484 is a wasteful number, since it uses less digits than its factorization.

384778484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6035 (or 6033 counting only the distinct ones).

The product of its digits is 4816896, while the sum is 53.

The square root of 384778484 is about 19615.7713078023. The cubic root of 384778484 is about 727.3390858977.

The spelling of 384778484 in words is "three hundred eighty-four million, seven hundred seventy-eight thousand, four hundred eighty-four".