384425 has 6 divisors (see below), whose sum is σ = 476718. Its totient is φ = 307520.

The previous prime is 384407. The next prime is 384437. The reversal of 384425 is 524483.

It can be written as a sum of positive squares in 3 ways, for example, as 135424 + 249001 = 368^2 + 499^2 .

It is not a de Polignac number, because 384425 - 2¹² = 380329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 384394 and 384403.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 384425.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7664 + ... + 7713.

It is an arithmetic number, because the mean of its divisors is an integer number (79453).

2³⁸⁴⁴²⁵ is an apocalyptic number.

It is an amenable number.

384425 is a deficient number, since it is larger than the sum of its proper divisors (92293).

384425 is a wasteful number, since it uses less digits than its factorization.

384425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15387 (or 15382 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 384425 is about 620.0201609625. The cubic root of 384425 is about 72.7116289743.

It can be divided in two parts, 3844 and 25, that multiplied together give a square (96100 = 310²).

The spelling of 384425 in words is "three hundred eighty-four thousand, four hundred twenty-five".