333381 has 4 divisors (see below), whose sum is σ = 444512. Its totient is φ = 222252.

The previous prime is 333367. The next prime is 333383. The reversal of 333381 is 183333.

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 not a de Polignac number, because 333381 - 2⁵ = 333349 is a prime.

It is a super-2 number, since 2×333381² = 222285782322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

333381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (333383) 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, 55561 + ... + 55566.

It is an arithmetic number, because the mean of its divisors is an integer number (111128).

2³³³³⁸¹ is an apocalyptic number.

It is an amenable number.

333381 is a deficient number, since it is larger than the sum of its proper divisors (111131).

333381 is a wasteful number, since it uses less digits than its factorization.

333381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111130.

The product of its digits is 648, while the sum is 21.

The square root of 333381 is about 577.3915482582. The cubic root of 333381 is about 69.3394322996.

The spelling of 333381 in words is "three hundred thirty-three thousand, three hundred eighty-one".