33320465 has 4 divisors (see below), whose sum is σ = 39984564. Its totient is φ = 26656368.

The previous prime is 33320453. The next prime is 33320467. The reversal of 33320465 is 56402333.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20866624 + 12453841 = 4568^2 + 3529^2 .

It is a cyclic number.

It is not a de Polignac number, because 33320465 - 2⁶ = 33320401 is a prime.

It is a super-2 number, since 2×33320465² = 2220506775632450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33320467) 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, 3332042 + ... + 3332051.

It is an arithmetic number, because the mean of its divisors is an integer number (9996141).

Almost surely, 2^33320465 is an apocalyptic number.

It is an amenable number.

33320465 is a deficient number, since it is larger than the sum of its proper divisors (6664099).

33320465 is an equidigital number, since it uses as much as digits as its factorization.

33320465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6664098.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 33320465 is about 5772.3881539619. The cubic root of 33320465 is about 321.7883754073.

Adding to 33320465 its reverse (56402333), we get a palindrome (89722798).

The spelling of 33320465 in words is "thirty-three million, three hundred twenty thousand, four hundred sixty-five".