33180742 has 12 divisors (see below), whose sum is σ = 57897180. Its totient is φ = 14220276.

The previous prime is 33180737. The next prime is 33180751. The reversal of 33180742 is 24708133.

It is a super-2 number, since 2×33180742² = 2201923279341128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33180742.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 169192 + ... + 169387.

It is an arithmetic number, because the mean of its divisors is an integer number (4824765).

Almost surely, 2^33180742 is an apocalyptic number.

33180742 is a deficient number, since it is larger than the sum of its proper divisors (24716438).

33180742 is a wasteful number, since it uses less digits than its factorization.

33180742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338595 (or 338588 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 33180742 is about 5760.2727365985. The cubic root of 33180742 is about 321.3379592297.

Adding to 33180742 its reverse (24708133), we get a palindrome (57888875).

The spelling of 33180742 in words is "thirty-three million, one hundred eighty thousand, seven hundred forty-two".