33234021 has 36 divisors (see below), whose sum is σ = 51887628. Its totient is φ = 20487168.

The previous prime is 33234013. The next prime is 33234037. The reversal of 33234021 is 12043233.

It can be written as a sum of positive squares in 2 ways, for example, as 15920100 + 17313921 = 3990^2 + 4161^2 .

It is not a de Polignac number, because 33234021 - 2³ = 33234013 is a prime.

It is a super-2 number, since 2×33234021² = 2209000303656882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33233985 and 33234003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33234001) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 172101 + ... + 172293.

It is an arithmetic number, because the mean of its divisors is an integer number (1441323).

Almost surely, 2^33234021 is an apocalyptic number.

It is an amenable number.

33234021 is a deficient number, since it is larger than the sum of its proper divisors (18653607).

33234021 is a wasteful number, since it uses less digits than its factorization.

33234021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 33234021 is about 5764.8955758105. The cubic root of 33234021 is about 321.5098602447.

Adding to 33234021 its reverse (12043233), we get a palindrome (45277254).

The spelling of 33234021 in words is "thirty-three million, two hundred thirty-four thousand, twenty-one".