33421441 has 4 divisors (see below), whose sum is σ = 34499584. Its totient is φ = 32343300.

The previous prime is 33421433. The next prime is 33421457. The reversal of 33421441 is 14412433.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14412433 = 7 ⋅2058919.

It is a cyclic number.

It is not a de Polignac number, because 33421441 - 2³ = 33421433 is a prime.

It is a super-2 number, since 2×33421441² = 2233985437032962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33421411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539025 + ... + 539086.

It is an arithmetic number, because the mean of its divisors is an integer number (8624896).

Almost surely, 2^33421441 is an apocalyptic number.

33421441 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

33421441 is a deficient number, since it is larger than the sum of its proper divisors (1078143).

33421441 is a wasteful number, since it uses less digits than its factorization.

33421441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078142.

The product of its digits is 1152, while the sum is 22.

The square root of 33421441 is about 5781.1280041182. The cubic root of 33421441 is about 322.1131021225.

Adding to 33421441 its reverse (14412433), we get a palindrome (47833874).

The spelling of 33421441 in words is "thirty-three million, four hundred twenty-one thousand, four hundred forty-one".