33241021 has 16 divisors (see below), whose sum is σ = 38320128. Its totient is φ = 28551600.

The previous prime is 33241009. The next prime is 33241031. The reversal of 33241021 is 12014233.

It is a happy number.

It is not a de Polignac number, because 33241021 - 2¹¹ = 33238973 is a prime.

It is a super-2 number, since 2×33241021² = 2209930954244882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33240986 and 33241004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33241031) 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 15 ways as a sum of consecutive naturals, for example, 13530 + ... + 15796.

It is an arithmetic number, because the mean of its divisors is an integer number (2395008).

Almost surely, 2^33241021 is an apocalyptic number.

33241021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

33241021 is a deficient number, since it is larger than the sum of its proper divisors (5079107).

33241021 is a wasteful number, since it uses less digits than its factorization.

33241021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 33241021 is about 5765.5026667239. The cubic root of 33241021 is about 321.5324316034.

Adding to 33241021 its reverse (12014233), we get a palindrome (45255254).

The spelling of 33241021 in words is "thirty-three million, two hundred forty-one thousand, twenty-one".