442425413 has 2 divisors, whose sum is σ = 442425414. Its totient is φ = 442425412.

The previous prime is 442425407. The next prime is 442425427. The reversal of 442425413 is 314524244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 346816129 + 95609284 = 18623^2 + 9778^2 .

It is a cyclic number.

It is not a de Polignac number, because 442425413 - 2⁸ = 442425157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442425443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221212706 + 221212707.

It is an arithmetic number, because the mean of its divisors is an integer number (221212707).

Almost surely, 2^442425413 is an apocalyptic number.

It is an amenable number.

442425413 is a deficient number, since it is larger than the sum of its proper divisors (1).

442425413 is an equidigital number, since it uses as much as digits as its factorization.

442425413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15360, while the sum is 29.

The square root of 442425413 is about 21033.9110248189. The cubic root of 442425413 is about 761.9854670086.

Adding to 442425413 its reverse (314524244), we get a palindrome (756949657).

The spelling of 442425413 in words is "four hundred forty-two million, four hundred twenty-five thousand, four hundred thirteen".