331402441 has 2 divisors, whose sum is σ = 331402442. Its totient is φ = 331402440.

The previous prime is 331402411. The next prime is 331402453. The reversal of 331402441 is 144204133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 331094416 + 308025 = 18196^2 + 555^2 .

It is a cyclic number.

It is not a de Polignac number, because 331402441 - 2⁹ = 331401929 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (331402411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165701220 + 165701221.

It is an arithmetic number, because the mean of its divisors is an integer number (165701221).

Almost surely, 2^331402441 is an apocalyptic number.

It is an amenable number.

331402441 is a deficient number, since it is larger than the sum of its proper divisors (1).

331402441 is an equidigital number, since it uses as much as digits as its factorization.

331402441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 331402441 is about 18204.4621178435. The cubic root of 331402441 is about 692.0198749401.

Adding to 331402441 its reverse (144204133), we get a palindrome (475606574).

The spelling of 331402441 in words is "three hundred thirty-one million, four hundred two thousand, four hundred forty-one".