33243261 has 8 divisors (see below), whose sum is σ = 44535264. Its totient is φ = 22056720.

The previous prime is 33243239. The next prime is 33243263. The reversal of 33243261 is 16234233.

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

It is not a de Polignac number, because 33243261 - 2⁵ = 33243229 is a prime.

It is a super-2 number, since 2×33243261² = 2210228803828242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33243263) 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, 25626 + ... + 26891.

It is an arithmetic number, because the mean of its divisors is an integer number (5566908).

Almost surely, 2^33243261 is an apocalyptic number.

It is an amenable number.

33243261 is a deficient number, since it is larger than the sum of its proper divisors (11292003).

33243261 is a wasteful number, since it uses less digits than its factorization.

33243261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52731.

The product of its digits is 2592, while the sum is 24.

The square root of 33243261 is about 5765.6969223156. The cubic root of 33243261 is about 321.5396537689.

Adding to 33243261 its reverse (16234233), we get a palindrome (49477494).

Subtracting from 33243261 its reverse (16234233), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 33243261 in words is "thirty-three million, two hundred forty-three thousand, two hundred sixty-one".