33140238 has 8 divisors (see below), whose sum is σ = 66280488. Its totient is φ = 11046744.

The previous prime is 33140231. The next prime is 33140257. The reversal of 33140238 is 83204133.

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

33140238 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33140231) 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, 2761681 + ... + 2761692.

It is an arithmetic number, because the mean of its divisors is an integer number (8285061).

Almost surely, 2^33140238 is an apocalyptic number.

33140238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33140238 is a wasteful number, since it uses less digits than its factorization.

33140238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5523378.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 33140238 is about 5756.7558572515. The cubic root of 33140238 is about 321.2071527082.

The spelling of 33140238 in words is "thirty-three million, one hundred forty thousand, two hundred thirty-eight".