33140442 has 8 divisors (see below), whose sum is σ = 66280896. Its totient is φ = 11046812.

The previous prime is 33140441. The next prime is 33140449. The reversal of 33140442 is 24404133.

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

33140442 is an admirable number.

It is a super-3 number, since 3×33140442³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (33140441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2761698 + ... + 2761709.

It is an arithmetic number, because the mean of its divisors is an integer number (8285112).

Almost surely, 2^33140442 is an apocalyptic number.

33140442 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.

33140442 is a wasteful number, since it uses less digits than its factorization.

33140442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5523412.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 33140442 is about 5756.7735755369. The cubic root of 33140442 is about 321.2078117874.

Adding to 33140442 its reverse (24404133), we get a palindrome (57544575).

The spelling of 33140442 in words is "thirty-three million, one hundred forty thousand, four hundred forty-two".