33240238 has 4 divisors (see below), whose sum is σ = 49860360. Its totient is φ = 16620118.

The previous prime is 33240227. The next prime is 33240239. The reversal of 33240238 is 83204233.

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

It is a super-2 number, since 2×33240238² = 2209826844593288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33240239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8310058 + ... + 8310061.

It is an arithmetic number, because the mean of its divisors is an integer number (12465090).

Almost surely, 2^33240238 is an apocalyptic number.

33240238 is a deficient number, since it is larger than the sum of its proper divisors (16620122).

33240238 is a wasteful number, since it uses less digits than its factorization.

33240238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16620121.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 33240238 is about 5765.4347624442. The cubic root of 33240238 is about 321.5299069931.

The spelling of 33240238 in words is "thirty-three million, two hundred forty thousand, two hundred thirty-eight".