384290939 has 2 divisors, whose sum is σ = 384290940. Its totient is φ = 384290938.

The previous prime is 384290927. The next prime is 384290953. The reversal of 384290939 is 939092483.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 384290939 - 2¹⁶ = 384225403 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 384290893 and 384290902.

It is not a weakly prime, because it can be changed into another prime (384290639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192145469 + 192145470.

It is an arithmetic number, because the mean of its divisors is an integer number (192145470).

Almost surely, 2^384290939 is an apocalyptic number.

384290939 is a deficient number, since it is larger than the sum of its proper divisors (1).

384290939 is an equidigital number, since it uses as much as digits as its factorization.

384290939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 384290939 is about 19603.3399960313. The cubic root of 384290939 is about 727.0317571981.

The spelling of 384290939 in words is "three hundred eighty-four million, two hundred ninety thousand, nine hundred thirty-nine".