384486280 has 64 divisors (see below), whose sum is σ = 964224000. Its totient is φ = 137124864.

The previous prime is 384486269. The next prime is 384486293. The reversal of 384486280 is 82684483.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1960 + ... + 27799.

It is an arithmetic number, because the mean of its divisors is an integer number (15066000).

Almost surely, 2^384486280 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 384486280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482112000).

384486280 is an abundant number, since it is smaller than the sum of its proper divisors (579737720).

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

384486280 is a wasteful number, since it uses less digits than its factorization.

384486280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29806 (or 29802 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 43.

The square root of 384486280 is about 19608.3217027873. The cubic root of 384486280 is about 727.1549234760.

The spelling of 384486280 in words is "three hundred eighty-four million, four hundred eighty-six thousand, two hundred eighty".