33320641 has 4 divisors (see below), whose sum is σ = 33818032. Its totient is φ = 32823252.

The previous prime is 33320627. The next prime is 33320647. The reversal of 33320641 is 14602333.

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.

It is a cyclic number.

It is not a de Polignac number, because 33320641 - 2¹³ = 33312449 is a prime.

It is a super-2 number, since 2×33320641² = 2220530233301762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33320647) 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, 248595 + ... + 248728.

It is an arithmetic number, because the mean of its divisors is an integer number (8454508).

Almost surely, 2^33320641 is an apocalyptic number.

It is an amenable number.

33320641 is a deficient number, since it is larger than the sum of its proper divisors (497391).

33320641 is an equidigital number, since it uses as much as digits as its factorization.

33320641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497390.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 33320641 is about 5772.4033989319. The cubic root of 33320641 is about 321.7889419726.

Adding to 33320641 its reverse (14602333), we get a palindrome (47922974).

The spelling of 33320641 in words is "thirty-three million, three hundred twenty thousand, six hundred forty-one".