33381226 has 4 divisors (see below), whose sum is σ = 50071842. Its totient is φ = 16690612.

The previous prime is 33381223. The next prime is 33381241. The reversal of 33381226 is 62218333.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62218333 = 31 ⋅2007043.

It can be written as a sum of positive squares in only one way, i.e., 18054001 + 15327225 = 4249^2 + 3915^2 .

It is a super-2 number, since 2×33381226² = 2228612498526152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33381194 and 33381203.

It is not an unprimeable number, because it can be changed into a prime (33381223) 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, 8345305 + ... + 8345308.

Almost surely, 2^33381226 is an apocalyptic number.

33381226 is a deficient number, since it is larger than the sum of its proper divisors (16690616).

33381226 is a wasteful number, since it uses less digits than its factorization.

33381226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16690615.

The product of its digits is 5184, while the sum is 28.

The square root of 33381226 is about 5777.6488297577. The cubic root of 33381226 is about 321.9838539800.

Adding to 33381226 its reverse (62218333), we get a palindrome (95599559).

The spelling of 33381226 in words is "thirty-three million, three hundred eighty-one thousand, two hundred twenty-six".