33420169 has 4 divisors (see below), whose sum is σ = 33434896. Its totient is φ = 33405444.

The previous prime is 33420161. The next prime is 33420217. The reversal of 33420169 is 96102433.

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 a cyclic number.

It is not a de Polignac number, because 33420169 - 2³ = 33420161 is a prime.

It is a super-2 number, since 2×33420169² = 2233815391977122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33420161) 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 in 3 ways as a sum of consecutive naturals, for example, 3159 + ... + 8764.

It is an arithmetic number, because the mean of its divisors is an integer number (8358724).

Almost surely, 2^33420169 is an apocalyptic number.

It is an amenable number.

33420169 is a deficient number, since it is larger than the sum of its proper divisors (14727).

33420169 is a wasteful number, since it uses less digits than its factorization.

33420169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14726.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 33420169 is about 5781.0179899391. The cubic root of 33420169 is about 322.1090155935.

It can be divided in two parts, 334 and 20169, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 33420169 in words is "thirty-three million, four hundred twenty thousand, one hundred sixty-nine".