384091423 has 4 divisors (see below), whose sum is σ = 386081728. Its totient is φ = 382101120.

The previous prime is 384091417. The next prime is 384091427. The reversal of 384091423 is 324190483.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-384091423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384091427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994863 + ... + 995248.

It is an arithmetic number, because the mean of its divisors is an integer number (96520432).

Almost surely, 2^384091423 is an apocalyptic number.

384091423 is a deficient number, since it is larger than the sum of its proper divisors (1990305).

384091423 is a wasteful number, since it uses less digits than its factorization.

384091423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990304.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 384091423 is about 19598.2505086551. The cubic root of 384091423 is about 726.9059154085.

The spelling of 384091423 in words is "three hundred eighty-four million, ninety-one thousand, four hundred twenty-three".