33402001 has 2 divisors, whose sum is σ = 33402002. Its totient is φ = 33402000.

The previous prime is 33401993. The next prime is 33402011. The reversal of 33402001 is 10020433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28890625 + 4511376 = 5375^2 + 2124^2 .

It is a cyclic number.

It is not a de Polignac number, because 33402001 - 2³ = 33401993 is a prime.

It is a super-2 number, since 2×33402001² = 2231387341608002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33402011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16701000 + 16701001.

It is an arithmetic number, because the mean of its divisors is an integer number (16701001).

Almost surely, 2^33402001 is an apocalyptic number.

It is an amenable number.

33402001 is a deficient number, since it is larger than the sum of its proper divisors (1).

33402001 is an equidigital number, since it uses as much as digits as its factorization.

33402001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 33402001 is about 5779.4464267783. The cubic root of 33402001 is about 322.0506363020.

Adding to 33402001 its reverse (10020433), we get a palindrome (43422434).

The spelling of 33402001 in words is "thirty-three million, four hundred two thousand, one".