33240091 has 8 divisors (see below), whose sum is σ = 34586624. Its totient is φ = 31910760.

The previous prime is 33240079. The next prime is 33240113. The reversal of 33240091 is 19004233.

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 33240091 - 2¹⁵ = 33207323 is a prime.

It is a super-2 number, since 2×33240091² = 2209807299376562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33240001) 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, 285 + ... + 8158.

It is an arithmetic number, because the mean of its divisors is an integer number (4323328).

Almost surely, 2^33240091 is an apocalyptic number.

33240091 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

33240091 is a deficient number, since it is larger than the sum of its proper divisors (1346533).

33240091 is a wasteful number, since it uses less digits than its factorization.

33240091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8601.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 33240091 is about 5765.4220140420. The cubic root of 33240091 is about 321.5294330197.

The spelling of 33240091 in words is "thirty-three million, two hundred forty thousand, ninety-one".