33103220 has 24 divisors (see below), whose sum is σ = 69679008. Its totient is φ = 13210400.

The previous prime is 33103219. The next prime is 33103223. The reversal of 33103220 is 2230133.

It is a junction number, because it is equal to n+sod(n) for n = 33103195 and 33103204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33103223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8135 + ... + 11505.

It is an arithmetic number, because the mean of its divisors is an integer number (2903292).

Almost surely, 2^33103220 is an apocalyptic number.

It is an amenable number.

33103220 is an abundant number, since it is smaller than the sum of its proper divisors (36575788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33103220 is a wasteful number, since it uses less digits than its factorization.

33103220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871 (or 3869 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 33103220 is about 5753.5397799963. The cubic root of 33103220 is about 321.0875108760.

Adding to 33103220 its reverse (2230133), we get a palindrome (35333353).

The spelling of 33103220 in words is "thirty-three million, one hundred three thousand, two hundred twenty".