401968267 has 2 divisors, whose sum is σ = 401968268. Its totient is φ = 401968266.

The previous prime is 401968249. The next prime is 401968277. The reversal of 401968267 is 762869104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401968267 - 2⁷ = 401968139 is a prime.

It is not a weakly prime, because it can be changed into another prime (401968207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200984133 + 200984134.

It is an arithmetic number, because the mean of its divisors is an integer number (200984134).

Almost surely, 2^401968267 is an apocalyptic number.

401968267 is a deficient number, since it is larger than the sum of its proper divisors (1).

401968267 is an equidigital number, since it uses as much as digits as its factorization.

401968267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 401968267 is about 20049.1462910519. The cubic root of 401968267 is about 738.0128491482.

The spelling of 401968267 in words is "four hundred one million, nine hundred sixty-eight thousand, two hundred sixty-seven".