33212429 has 8 divisors (see below), whose sum is σ = 33530112. Its totient is φ = 32896720.

The previous prime is 33212401. The next prime is 33212449. The reversal of 33212429 is 92421233.

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

It is a cyclic number.

It is not a de Polignac number, because 33212429 - 2²⁴ = 16435213 is a prime.

It is a super-2 number, since 2×33212429² = 2206130880160082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33212398 and 33212407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33212449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76844 + ... + 77274.

It is an arithmetic number, because the mean of its divisors is an integer number (4191264).

Almost surely, 2^33212429 is an apocalyptic number.

It is an amenable number.

33212429 is a deficient number, since it is larger than the sum of its proper divisors (317683).

33212429 is a wasteful number, since it uses less digits than its factorization.

33212429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987.

The product of its digits is 2592, while the sum is 26.

The square root of 33212429 is about 5763.0225576515. The cubic root of 33212429 is about 321.4402173041.

The spelling of 33212429 in words is "thirty-three million, two hundred twelve thousand, four hundred twenty-nine".