33421235 has 8 divisors (see below), whose sum is σ = 42464736. Its totient is φ = 25164160.

The previous prime is 33421189. The next prime is 33421237. The reversal of 33421235 is 53212433.

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

It is not a de Polignac number, because 33421235 - 2⁸ = 33420979 is a prime.

It is a super-2 number, since 2×33421235² = 2233957897850450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33421235.

It is not an unprimeable number, because it can be changed into a prime (33421237) 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, 196511 + ... + 196680.

It is an arithmetic number, because the mean of its divisors is an integer number (5308092).

Almost surely, 2^33421235 is an apocalyptic number.

33421235 is a deficient number, since it is larger than the sum of its proper divisors (9043501).

33421235 is a wasteful number, since it uses less digits than its factorization.

33421235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393213.

The product of its digits is 2160, while the sum is 23.

The square root of 33421235 is about 5781.1101874986. The cubic root of 33421235 is about 322.1124403174.

Adding to 33421235 its reverse (53212433), we get a palindrome (86633668).

The spelling of 33421235 in words is "thirty-three million, four hundred twenty-one thousand, two hundred thirty-five".