33040001 has 4 divisors (see below), whose sum is σ = 33933012. Its totient is φ = 32146992.

The previous prime is 33039997. The next prime is 33040009. The reversal of 33040001 is 10004033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10004033 = 13 ⋅769541.

It can be written as a sum of positive squares in 2 ways, for example, as 12609601 + 20430400 = 3551^2 + 4520^2 .

It is a cyclic number.

It is not a de Polignac number, because 33040001 - 2² = 33039997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33040009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446450 + ... + 446523.

It is an arithmetic number, because the mean of its divisors is an integer number (8483253).

Almost surely, 2^33040001 is an apocalyptic number.

It is an amenable number.

33040001 is a deficient number, since it is larger than the sum of its proper divisors (893011).

33040001 is an equidigital number, since it uses as much as digits as its factorization.

33040001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893010.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 33040001 is about 5748.0432322661. The cubic root of 33040001 is about 320.8829812562.

Adding to 33040001 its reverse (10004033), we get a palindrome (43044034).

The spelling of 33040001 in words is "thirty-three million, forty thousand, one".