33243401 has 2 divisors, whose sum is σ = 33243402. Its totient is φ = 33243400.

The previous prime is 33243389. The next prime is 33243403. The reversal of 33243401 is 10434233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32035600 + 1207801 = 5660^2 + 1099^2 .

It is a cyclic number.

It is not a de Polignac number, because 33243401 - 2¹⁴ = 33227017 is a prime.

It is a super-2 number, since 2×33243401² = 2210247420093602, which contains 22 as substring.

Together with 33243403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33243403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16621700 + 16621701.

It is an arithmetic number, because the mean of its divisors is an integer number (16621701).

Almost surely, 2^33243401 is an apocalyptic number.

It is an amenable number.

33243401 is a deficient number, since it is larger than the sum of its proper divisors (1).

33243401 is an equidigital number, since it uses as much as digits as its factorization.

33243401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 33243401 is about 5765.7090630728. The cubic root of 33243401 is about 321.5401051435.

Adding to 33243401 its reverse (10434233), we get a palindrome (43677634).

The spelling of 33243401 in words is "thirty-three million, two hundred forty-three thousand, four hundred one".