384139130 has 16 divisors (see below), whose sum is σ = 699221160. Its totient is φ = 151928832.

The previous prime is 384139117. The next prime is 384139163. The reversal of 384139130 is 31931483.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 309091561 + 75047569 = 17581^2 + 8663^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214919 + ... + 216698.

Almost surely, 2^384139130 is an apocalyptic number.

384139130 is a deficient number, since it is larger than the sum of its proper divisors (315082030).

384139130 is a wasteful number, since it uses less digits than its factorization.

384139130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431713.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 384139130 is about 19599.4675948098. The cubic root of 384139130 is about 726.9360098624.

The spelling of 384139130 in words is "three hundred eighty-four million, one hundred thirty-nine thousand, one hundred thirty".