33421236 has 24 divisors (see below), whose sum is σ = 78714720. Its totient is φ = 11035872.

The previous prime is 33421189. The next prime is 33421237. The reversal of 33421236 is 63212433.

It is a super-2 number, since 2×33421236² = 2233958031535392, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33421237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11731 + ... + 14298.

It is an arithmetic number, because the mean of its divisors is an integer number (3279780).

Almost surely, 2^33421236 is an apocalyptic number.

It is an amenable number.

33421236 is an abundant number, since it is smaller than the sum of its proper divisors (45293484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33421236 is a wasteful number, since it uses less digits than its factorization.

33421236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26143 (or 26141 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

The square root of 33421236 is about 5781.1102739872. The cubic root of 33421236 is about 322.1124435301.

Adding to 33421236 its reverse (63212433), we get a palindrome (96633669).

The spelling of 33421236 in words is "thirty-three million, four hundred twenty-one thousand, two hundred thirty-six".