442969427 has 2 divisors, whose sum is σ = 442969428. Its totient is φ = 442969426.

The previous prime is 442969421. The next prime is 442969451. The reversal of 442969427 is 724969244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442969427 - 2¹⁸ = 442707283 is a prime.

It is not a weakly prime, because it can be changed into another prime (442969421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221484713 + 221484714.

It is an arithmetic number, because the mean of its divisors is an integer number (221484714).

Almost surely, 2^442969427 is an apocalyptic number.

442969427 is a deficient number, since it is larger than the sum of its proper divisors (1).

442969427 is an equidigital number, since it uses as much as digits as its factorization.

442969427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 47.

The square root of 442969427 is about 21046.8388837849. The cubic root of 442969427 is about 762.2976559568.

The spelling of 442969427 in words is "four hundred forty-two million, nine hundred sixty-nine thousand, four hundred twenty-seven".