442054643 has 2 divisors, whose sum is σ = 442054644. Its totient is φ = 442054642.

The previous prime is 442054607. The next prime is 442054681. The reversal of 442054643 is 346450244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442054643 - 2¹⁸ = 441792499 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (442053643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221027321 + 221027322.

It is an arithmetic number, because the mean of its divisors is an integer number (221027322).

Almost surely, 2^442054643 is an apocalyptic number.

442054643 is a deficient number, since it is larger than the sum of its proper divisors (1).

442054643 is an equidigital number, since it uses as much as digits as its factorization.

442054643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 32.

The square root of 442054643 is about 21025.0955526961. The cubic root of 442054643 is about 761.7725495303.

The spelling of 442054643 in words is "four hundred forty-two million, fifty-four thousand, six hundred forty-three".