384879930 has 64 divisors (see below), whose sum is σ = 969062400. Its totient is φ = 97644096.

The previous prime is 384879923. The next prime is 384879931. The reversal of 384879930 is 39978483.

It is not an unprimeable number, because it can be changed into a prime (384879931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135909 + ... + 138711.

It is an arithmetic number, because the mean of its divisors is an integer number (15141600).

Almost surely, 2^384879930 is an apocalyptic number.

384879930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 384879930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (484531200).

384879930 is an abundant number, since it is smaller than the sum of its proper divisors (584182470).

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

384879930 is a wasteful number, since it uses less digits than its factorization.

384879930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3035.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 384879930 is about 19618.3569648429. The cubic root of 384879930 is about 727.4030007305.

The spelling of 384879930 in words is "three hundred eighty-four million, eight hundred seventy-nine thousand, nine hundred thirty".