33304420 has 12 divisors (see below), whose sum is σ = 69939324. Its totient is φ = 13321760.

The previous prime is 33304417. The next prime is 33304421. The reversal of 33304420 is 2440333.

It can be written as a sum of positive squares in 2 ways, for example, as 10969344 + 22335076 = 3312^2 + 4726^2 .

It is a super-2 number, since 2×33304420² = 2218368783072800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33304421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832591 + ... + 832630.

It is an arithmetic number, because the mean of its divisors is an integer number (5828277).

Almost surely, 2^33304420 is an apocalyptic number.

It is an amenable number.

33304420 is an abundant number, since it is smaller than the sum of its proper divisors (36634904).

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

33304420 is a wasteful number, since it uses less digits than its factorization.

33304420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665230 (or 1665228 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 33304420 is about 5770.9981805577. The cubic root of 33304420 is about 321.7367162299.

Adding to 33304420 its reverse (2440333), we get a palindrome (35744753).

It can be divided in two parts, 3330 and 4420, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 33304420 in words is "thirty-three million, three hundred four thousand, four hundred twenty".