381028033 has 8 divisors (see below), whose sum is σ = 401889600. Its totient is φ = 360247248.

The previous prime is 381028027. The next prime is 381028049. The reversal of 381028033 is 330820183.

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 381028033 - 2²⁵ = 347473601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381027992 and 381028010.

It is not an unprimeable number, because it can be changed into a prime (381028073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10378 + ... + 29491.

It is an arithmetic number, because the mean of its divisors is an integer number (50236200).

Almost surely, 2^381028033 is an apocalyptic number.

It is an amenable number.

381028033 is a deficient number, since it is larger than the sum of its proper divisors (20861567).

381028033 is a wasteful number, since it uses less digits than its factorization.

381028033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40391.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 381028033 is about 19519.9393697829. The cubic root of 381028033 is about 724.9682319810.

The spelling of 381028033 in words is "three hundred eighty-one million, twenty-eight thousand, thirty-three".