33204401 has 4 divisors (see below), whose sum is σ = 33416052. Its totient is φ = 32992752.

The previous prime is 33204377. The next prime is 33204403. The reversal of 33204401 is 10440233.

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 16810000 + 16394401 = 4100^2 + 4049^2 .

It is a cyclic number.

It is not a de Polignac number, because 33204401 - 2⁶ = 33204337 is a prime.

It is a super-2 number, since 2×33204401² = 2205064491537602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33204401.

It is not an unprimeable number, because it can be changed into a prime (33204403) 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, 105590 + ... + 105903.

It is an arithmetic number, because the mean of its divisors is an integer number (8354013).

Almost surely, 2^33204401 is an apocalyptic number.

It is an amenable number.

33204401 is a deficient number, since it is larger than the sum of its proper divisors (211651).

33204401 is a wasteful number, since it uses less digits than its factorization.

33204401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211650.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 33204401 is about 5762.3260060500. The cubic root of 33204401 is about 321.4143160568.

Adding to 33204401 its reverse (10440233), we get a palindrome (43644634).

The spelling of 33204401 in words is "thirty-three million, two hundred four thousand, four hundred one".