33334381 has 4 divisors (see below), whose sum is σ = 33507292. Its totient is φ = 33161472.

The previous prime is 33334361. The next prime is 33334423. The reversal of 33334381 is 18343333.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18343333 = 1319 ⋅13907.

It can be written as a sum of positive squares in 2 ways, for example, as 11628100 + 21706281 = 3410^2 + 4659^2 .

It is a cyclic number.

It is not a de Polignac number, because 33334381 - 2⁵ = 33334349 is a prime.

It is a super-2 number, since 2×33334381² = 2222361913306322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33334321) 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, 86166 + ... + 86551.

It is an arithmetic number, because the mean of its divisors is an integer number (8376823).

Almost surely, 2^33334381 is an apocalyptic number.

It is an amenable number.

33334381 is a deficient number, since it is larger than the sum of its proper divisors (172911).

33334381 is a wasteful number, since it uses less digits than its factorization.

33334381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172910.

The product of its digits is 7776, while the sum is 28.

The square root of 33334381 is about 5773.5934217782. The cubic root of 33334381 is about 321.8331665367.

The spelling of 33334381 in words is "thirty-three million, three hundred thirty-four thousand, three hundred eighty-one".