381928241 has 8 divisors (see below), whose sum is σ = 388986624. Its totient is φ = 374916640.

The previous prime is 381928219. The next prime is 381928297. The reversal of 381928241 is 142829183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381928241 - 2¹⁸ = 381666097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381928195 and 381928204.

It is not an unprimeable number, because it can be changed into a prime (381925241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5000 + ... + 28086.

It is an arithmetic number, because the mean of its divisors is an integer number (48623328).

Almost surely, 2^381928241 is an apocalyptic number.

It is an amenable number.

381928241 is a deficient number, since it is larger than the sum of its proper divisors (7058383).

381928241 is a wasteful number, since it uses less digits than its factorization.

381928241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23391.

The product of its digits is 27648, while the sum is 38.

The square root of 381928241 is about 19542.9844445520. The cubic root of 381928241 is about 725.5387139950.

The spelling of 381928241 in words is "three hundred eighty-one million, nine hundred twenty-eight thousand, two hundred forty-one".