33304821 has 8 divisors (see below), whose sum is σ = 48443424. Its totient is φ = 20184720.

The previous prime is 33304807. The next prime is 33304823. The reversal of 33304821 is 12840333.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33304821 - 2¹⁰ = 33303797 is a prime.

It is a super-2 number, since 2×33304821² = 2218422203684082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33304791 and 33304800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33304823) 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, 504586 + ... + 504651.

It is an arithmetic number, because the mean of its divisors is an integer number (6055428).

Almost surely, 2^33304821 is an apocalyptic number.

It is an amenable number.

33304821 is a deficient number, since it is larger than the sum of its proper divisors (15138603).

33304821 is a wasteful number, since it uses less digits than its factorization.

33304821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009251.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 33304821 is about 5771.0329231430. The cubic root of 33304821 is about 321.7380075090.

The spelling of 33304821 in words is "thirty-three million, three hundred four thousand, eight hundred twenty-one".