442101427 has 2 divisors, whose sum is σ = 442101428. Its totient is φ = 442101426.

The previous prime is 442101403. The next prime is 442101449. The reversal of 442101427 is 724101244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442101427 - 2⁷ = 442101299 is a prime.

It is not a weakly prime, because it can be changed into another prime (442101487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221050713 + 221050714.

It is an arithmetic number, because the mean of its divisors is an integer number (221050714).

Almost surely, 2^442101427 is an apocalyptic number.

442101427 is a deficient number, since it is larger than the sum of its proper divisors (1).

442101427 is an equidigital number, since it uses as much as digits as its factorization.

442101427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 442101427 is about 21026.2080984661. The cubic root of 442101427 is about 761.7994221582.

The spelling of 442101427 in words is "four hundred forty-two million, one hundred one thousand, four hundred twenty-seven".