384742625 has 16 divisors (see below), whose sum is σ = 481430352. Its totient is φ = 306979200.

The previous prime is 384742601. The next prime is 384742627. The reversal of 384742625 is 526247483.

It can be written as a sum of positive squares in 8 ways, for example, as 9778129 + 374964496 = 3127^2 + 19364^2 .

It is not a de Polignac number, because 384742625 - 2¹⁰ = 384741601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (384742627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45749 + ... + 53501.

It is an arithmetic number, because the mean of its divisors is an integer number (30089397).

Almost surely, 2^384742625 is an apocalyptic number.

It is an amenable number.

384742625 is a deficient number, since it is larger than the sum of its proper divisors (96687727).

384742625 is an equidigital number, since it uses as much as digits as its factorization.

384742625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8165 (or 8155 counting only the distinct ones).

The product of its digits is 322560, while the sum is 41.

The square root of 384742625 is about 19614.8572515836. The cubic root of 384742625 is about 727.3164906785.

The spelling of 384742625 in words is "three hundred eighty-four million, seven hundred forty-two thousand, six hundred twenty-five".