442254304357 has 2 divisors, whose sum is σ = 442254304358. Its totient is φ = 442254304356.

The previous prime is 442254304277. The next prime is 442254304363. The reversal of 442254304357 is 753403452244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225695305476 + 216558998881 = 475074^2 + 465359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442254304357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442254304367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221127152178 + 221127152179.

It is an arithmetic number, because the mean of its divisors is an integer number (221127152179).

Almost surely, 2^442254304357 is an apocalyptic number.

It is an amenable number.

442254304357 is a deficient number, since it is larger than the sum of its proper divisors (1).

442254304357 is an equidigital number, since it uses as much as digits as its factorization.

442254304357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1612800, while the sum is 43.

The spelling of 442254304357 in words is "four hundred forty-two billion, two hundred fifty-four million, three hundred four thousand, three hundred fifty-seven".