2381933 has 4 divisors (see below), whose sum is σ = 2387868. Its totient is φ = 2376000.

The previous prime is 2381909. The next prime is 2381941. The reversal of 2381933 is 3391832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1435204 + 946729 = 1198^2 + 973^2 .

It is a cyclic number.

It is not a de Polignac number, because 2381933 - 2⁸ = 2381677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2381896 and 2381905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2381963) 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, 2318 + ... + 3183.

It is an arithmetic number, because the mean of its divisors is an integer number (596967).

2^2381933 is an apocalyptic number.

It is an amenable number.

2381933 is a deficient number, since it is larger than the sum of its proper divisors (5935).

2381933 is an equidigital number, since it uses as much as digits as its factorization.

2381933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5934.

The product of its digits is 3888, while the sum is 29.

The square root of 2381933 is about 1543.3512237984. The cubic root of 2381933 is about 133.5497810766.

The spelling of 2381933 in words is "two million, three hundred eighty-one thousand, nine hundred thirty-three".