384140939 has 12 divisors (see below), whose sum is σ = 481232304. Its totient is φ = 303935184.

The previous prime is 384140921. The next prime is 384140941. The reversal of 384140939 is 939041483.

It is not a de Polignac number, because 384140939 - 2²⁰ = 383092363 is a prime.

It is a super-2 number, since 2×384140939² = 295128522031603442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 384140896 and 384140905.

It is not an unprimeable number, because it can be changed into a prime (384140969) 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, 300887 + ... + 302160.

It is an arithmetic number, because the mean of its divisors is an integer number (40102692).

Almost surely, 2^384140939 is an apocalyptic number.

384140939 is a deficient number, since it is larger than the sum of its proper divisors (97091365).

384140939 is a wasteful number, since it uses less digits than its factorization.

384140939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603074 (or 603067 counting only the distinct ones).

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

The square root of 384140939 is about 19599.5137439682. The cubic root of 384140939 is about 726.9371509638.

The spelling of 384140939 in words is "three hundred eighty-four million, one hundred forty thousand, nine hundred thirty-nine".