384188493 has 16 divisors (see below), whose sum is σ = 580690880. Its totient is φ = 223979904.

The previous prime is 384188473. The next prime is 384188507. The reversal of 384188493 is 394881483.

It is not a de Polignac number, because 384188493 - 2⁵ = 384188461 is a prime.

It is a super-2 number, since 2×384188493² = 295201596307222098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384188443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258496 + ... + 259977.

It is an arithmetic number, because the mean of its divisors is an integer number (36293180).

Almost surely, 2^384188493 is an apocalyptic number.

It is an amenable number.

384188493 is a deficient number, since it is larger than the sum of its proper divisors (196502387).

384188493 is a wasteful number, since it uses less digits than its factorization.

384188493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518508.

The product of its digits is 663552, while the sum is 48.

The square root of 384188493 is about 19600.7268487676. The cubic root of 384188493 is about 726.9671463287.

The spelling of 384188493 in words is "three hundred eighty-four million, one hundred eighty-eight thousand, four hundred ninety-three".