42401267 has 2 divisors, whose sum is σ = 42401268. Its totient is φ = 42401266.

The previous prime is 42401263. The next prime is 42401269. The reversal of 42401267 is 76210424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42401267 - 2² = 42401263 is a prime.

Together with 42401269, 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 (42401263) 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, 21200633 + 21200634.

It is an arithmetic number, because the mean of its divisors is an integer number (21200634).

Almost surely, 2^42401267 is an apocalyptic number.

42401267 is a deficient number, since it is larger than the sum of its proper divisors (1).

42401267 is an equidigital number, since it uses as much as digits as its factorization.

42401267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 42401267 is about 6511.6255267022. The cubic root of 42401267 is about 348.7061535384.

The spelling of 42401267 in words is "forty-two million, four hundred one thousand, two hundred sixty-seven".