442214407 has 2 divisors, whose sum is σ = 442214408. Its totient is φ = 442214406.

The previous prime is 442214401. The next prime is 442214431. The reversal of 442214407 is 704412244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442214407 - 2²⁷ = 307996679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442214401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221107203 + 221107204.

It is an arithmetic number, because the mean of its divisors is an integer number (221107204).

Almost surely, 2^442214407 is an apocalyptic number.

442214407 is a deficient number, since it is larger than the sum of its proper divisors (1).

442214407 is an equidigital number, since it uses as much as digits as its factorization.

442214407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7168, while the sum is 28.

The square root of 442214407 is about 21028.8945738952. The cubic root of 442214407 is about 761.8643098083.

The spelling of 442214407 in words is "four hundred forty-two million, two hundred fourteen thousand, four hundred seven".