33240243 has 8 divisors (see below), whose sum is σ = 44369856. Its totient is φ = 22135400.

The previous prime is 33240239. The next prime is 33240257. The reversal of 33240243 is 34204233.

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 33240243 - 2² = 33240239 is a prime.

It is a super-2 number, since 2×33240243² = 2209827509398098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33240203) 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, 2793 + ... + 8618.

It is an arithmetic number, because the mean of its divisors is an integer number (5546232).

Almost surely, 2^33240243 is an apocalyptic number.

33240243 is a deficient number, since it is larger than the sum of its proper divisors (11129613).

33240243 is a wasteful number, since it uses less digits than its factorization.

33240243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12385.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 33240243 is about 5765.4351960628. The cubic root of 33240243 is about 321.5299231146.

Adding to 33240243 its reverse (34204233), we get a palindrome (67444476).

The spelling of 33240243 in words is "thirty-three million, two hundred forty thousand, two hundred forty-three".