42401347 has 2 divisors, whose sum is σ = 42401348. Its totient is φ = 42401346.

The previous prime is 42401321. The next prime is 42401357. The reversal of 42401347 is 74310424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42401347 is a prime.

It is not a weakly prime, because it can be changed into another prime (42401357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21200673 + 21200674.

It is an arithmetic number, because the mean of its divisors is an integer number (21200674).

Almost surely, 2^42401347 is an apocalyptic number.

42401347 is a deficient number, since it is larger than the sum of its proper divisors (1).

42401347 is an equidigital number, since it uses as much as digits as its factorization.

42401347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 42401347 is about 6511.6316695587. The cubic root of 42401347 is about 348.7063728437.

The spelling of 42401347 in words is "forty-two million, four hundred one thousand, three hundred forty-seven".