384647480 has 64 divisors (see below), whose sum is σ = 997928640. Its totient is φ = 130701312.

The previous prime is 384647477. The next prime is 384647489. The reversal of 384647480 is 84746483.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384647489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25562 + ... + 37718.

It is an arithmetic number, because the mean of its divisors is an integer number (15592635).

Almost surely, 2^384647480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 384647480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (498964320).

384647480 is an abundant number, since it is smaller than the sum of its proper divisors (613281160).

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

384647480 is a wasteful number, since it uses less digits than its factorization.

384647480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12288 (or 12284 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 44.

The square root of 384647480 is about 19612.4317717105. The cubic root of 384647480 is about 727.2565317795.

The spelling of 384647480 in words is "three hundred eighty-four million, six hundred forty-seven thousand, four hundred eighty".