33386746 has 4 divisors (see below), whose sum is σ = 50080122. Its totient is φ = 16693372.

The previous prime is 33386737. The next prime is 33386747. The reversal of 33386746 is 64768333.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64768333 = 7 ⋅9252619.

It can be written as a sum of positive squares in only one way, i.e., 29430625 + 3956121 = 5425^2 + 1989^2 .

It is a super-2 number, since 2×33386746² = 2229349616937032, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 33386699 and 33386708.

It is not an unprimeable number, because it can be changed into a prime (33386747) 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 as a sum of consecutive naturals, namely, 8346685 + ... + 8346688.

Almost surely, 2^33386746 is an apocalyptic number.

33386746 is a deficient number, since it is larger than the sum of its proper divisors (16693376).

33386746 is a wasteful number, since it uses less digits than its factorization.

33386746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16693375.

The product of its digits is 217728, while the sum is 40.

The square root of 33386746 is about 5778.1265129798. The cubic root of 33386746 is about 322.0016010105.

Subtracting from 33386746 its sum of digits (40), we obtain a triangular number (33386706 = T₈₁₇₁).

The spelling of 33386746 in words is "thirty-three million, three hundred eighty-six thousand, seven hundred forty-six".