33354021 has 4 divisors (see below), whose sum is σ = 44472032. Its totient is φ = 22236012.

The previous prime is 33354019. The next prime is 33354049. The reversal of 33354021 is 12045333.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 33354021 - 2¹ = 33354019 is a prime.

It is a super-2 number, since 2×33354021² = 2224981433736882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33354001) 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, 5559001 + ... + 5559006.

It is an arithmetic number, because the mean of its divisors is an integer number (11118008).

Almost surely, 2^33354021 is an apocalyptic number.

It is an amenable number.

33354021 is a deficient number, since it is larger than the sum of its proper divisors (11118011).

33354021 is a wasteful number, since it uses less digits than its factorization.

33354021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11118010.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 33354021 is about 5775.2940184894. The cubic root of 33354021 is about 321.8963601748.

Adding to 33354021 its reverse (12045333), we get a palindrome (45399354).

The spelling of 33354021 in words is "thirty-three million, three hundred fifty-four thousand, twenty-one".