384121841 has 4 divisors (see below), whose sum is σ = 404338800. Its totient is φ = 363904884.

The previous prime is 384121831. The next prime is 384121853. The reversal of 384121841 is 148121483.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 384121841 - 2¹⁴ = 384105457 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 = 384121798 and 384121807.

It is not an unprimeable number, because it can be changed into a prime (384121811) 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, 10108451 + ... + 10108488.

It is an arithmetic number, because the mean of its divisors is an integer number (101084700).

Almost surely, 2^384121841 is an apocalyptic number.

It is an amenable number.

384121841 is a deficient number, since it is larger than the sum of its proper divisors (20216959).

384121841 is a wasteful number, since it uses less digits than its factorization.

384121841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20216958.

The product of its digits is 6144, while the sum is 32.

The square root of 384121841 is about 19599.0265319480. The cubic root of 384121841 is about 726.9251039308.

The spelling of 384121841 in words is "three hundred eighty-four million, one hundred twenty-one thousand, eight hundred forty-one".