384620872 has 8 divisors (see below), whose sum is σ = 721164150. Its totient is φ = 192310432.

The previous prime is 384620861. The next prime is 384620879. The reversal of 384620872 is 278026483.

It can be written as a sum of positive squares in only one way, i.e., 298391076 + 86229796 = 17274^2 + 9286^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (384620879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24038797 + ... + 24038812.

Almost surely, 2^384620872 is an apocalyptic number.

It is an amenable number.

384620872 is a deficient number, since it is larger than the sum of its proper divisors (336543278).

384620872 is a wasteful number, since it uses less digits than its factorization.

384620872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48077615 (or 48077611 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 384620872 is about 19611.7534147256. The cubic root of 384620872 is about 727.2397620626.

The spelling of 384620872 in words is "three hundred eighty-four million, six hundred twenty thousand, eight hundred seventy-two".