384139292 has 12 divisors (see below), whose sum is σ = 672420336. Its totient is φ = 192019200.

The previous prime is 384139289. The next prime is 384139331. The reversal of 384139292 is 292931483.

It is a super-2 number, since 2×384139292² = 295125991316522528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8417 + ... + 28967.

It is an arithmetic number, because the mean of its divisors is an integer number (56035028).

Almost surely, 2^384139292 is an apocalyptic number.

It is an amenable number.

384139292 is a deficient number, since it is larger than the sum of its proper divisors (288281044).

384139292 is a wasteful number, since it uses less digits than its factorization.

384139292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25228 (or 25226 counting only the distinct ones).

The product of its digits is 93312, while the sum is 41.

The square root of 384139292 is about 19599.4717275747. The cubic root of 384139292 is about 726.9361120507.

The spelling of 384139292 in words is "three hundred eighty-four million, one hundred thirty-nine thousand, two hundred ninety-two".