401242033 has 2 divisors, whose sum is σ = 401242034. Its totient is φ = 401242032.

The previous prime is 401242013. The next prime is 401242063. The reversal of 401242033 is 330242104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 362217024 + 39025009 = 19032^2 + 6247^2 .

It is a cyclic number.

It is not a de Polignac number, because 401242033 - 2⁹ = 401241521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 401242033.

It is not a weakly prime, because it can be changed into another prime (401242013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200621016 + 200621017.

It is an arithmetic number, because the mean of its divisors is an integer number (200621017).

Almost surely, 2^401242033 is an apocalyptic number.

It is an amenable number.

401242033 is a deficient number, since it is larger than the sum of its proper divisors (1).

401242033 is an equidigital number, since it uses as much as digits as its factorization.

401242033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 401242033 is about 20031.0267585064. The cubic root of 401242033 is about 737.5681265420.

Adding to 401242033 its reverse (330242104), we get a palindrome (731484137).

The spelling of 401242033 in words is "four hundred one million, two hundred forty-two thousand, thirty-three".