33140042 has 8 divisors (see below), whose sum is σ = 53533956. Its totient is φ = 15295392.

The previous prime is 33140039. The next prime is 33140071. The reversal of 33140042 is 24004133.

It can be written as a sum of positive squares in 2 ways, for example, as 29495761 + 3644281 = 5431^2 + 1909^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 33140042.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637283 + ... + 637334.

Almost surely, 2^33140042 is an apocalyptic number.

33140042 is a deficient number, since it is larger than the sum of its proper divisors (20393914).

33140042 is a wasteful number, since it uses less digits than its factorization.

33140042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274632.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 33140042 is about 5756.7388337495. The cubic root of 33140042 is about 321.2065194727.

Adding to 33140042 its reverse (24004133), we get a palindrome (57144175).

The spelling of 33140042 in words is "thirty-three million, one hundred forty thousand, forty-two".