384485139 has 12 divisors (see below), whose sum is σ = 556009272. Its totient is φ = 256027200.

The previous prime is 384485111. The next prime is 384485147. The reversal of 384485139 is 931584483.

384485139 is a `hidden beast` number, since 38 + 4 + 485 + 139 = 666.

It is not a de Polignac number, because 384485139 - 2¹⁵ = 384452371 is a prime.

It is a super-2 number, since 2×384485139² = 295657644223698642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 384485094 and 384485103.

It is not an unprimeable number, because it can be changed into a prime (384485149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16317 + ... + 32174.

It is an arithmetic number, because the mean of its divisors is an integer number (46334106).

Almost surely, 2^384485139 is an apocalyptic number.

384485139 is a deficient number, since it is larger than the sum of its proper divisors (171524133).

384485139 is a wasteful number, since it uses less digits than its factorization.

384485139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49378 (or 49375 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 384485139 is about 19608.2926079758. The cubic root of 384485139 is about 727.1542041745.

The spelling of 384485139 in words is "three hundred eighty-four million, four hundred eighty-five thousand, one hundred thirty-nine".