33010042 has 16 divisors (see below), whose sum is σ = 53562600. Its totient is φ = 15167232.

The previous prime is 33010007. The next prime is 33010051. The reversal of 33010042 is 24001033.

It can be written as a sum of positive squares in 4 ways, for example, as 10361961 + 22648081 = 3219^2 + 4759^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3334 + ... + 8782.

Almost surely, 2^33010042 is an apocalyptic number.

33010042 is a deficient number, since it is larger than the sum of its proper divisors (20552558).

33010042 is a wasteful number, since it uses less digits than its factorization.

33010042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5697.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 33010042 is about 5745.4366239651. The cubic root of 33010042 is about 320.7859651138.

Adding to 33010042 its reverse (24001033), we get a palindrome (57011075).

Subtracting from 33010042 its reverse (24001033), we obtain a palindrome (9009009).

The spelling of 33010042 in words is "thirty-three million, ten thousand, forty-two".