384811925 has 6 divisors (see below), whose sum is σ = 477166818. Its totient is φ = 307849520.

The previous prime is 384811907. The next prime is 384811939. The reversal of 384811925 is 529118483.

It can be written as a sum of positive squares in 3 ways, for example, as 22061809 + 362750116 = 4697^2 + 19046^2 .

It is a de Polignac number, because none of the positive numbers 2^k-384811925 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 7696214 + ... + 7696263.

It is an arithmetic number, because the mean of its divisors is an integer number (79527803).

Almost surely, 2^384811925 is an apocalyptic number.

It is an amenable number.

384811925 is a deficient number, since it is larger than the sum of its proper divisors (92354893).

384811925 is a wasteful number, since it uses less digits than its factorization.

384811925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15392487 (or 15392482 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 384811925 is about 19616.6236901257. The cubic root of 384811925 is about 727.3601562388.

The spelling of 384811925 in words is "three hundred eighty-four million, eight hundred eleven thousand, nine hundred twenty-five".