442447265 has 12 divisors (see below), whose sum is σ = 571997244. Its totient is φ = 326605056.

The previous prime is 442447231. The next prime is 442447273. The reversal of 442447265 is 562744244.

It can be written as a sum of positive squares in 6 ways, for example, as 35093776 + 407353489 = 5924^2 + 20183^2 .

It is not a de Polignac number, because 442447265 - 2¹⁰ = 442446241 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168281 + ... + 170889.

It is an arithmetic number, because the mean of its divisors is an integer number (47666437).

Almost surely, 2^442447265 is an apocalyptic number.

It is an amenable number.

442447265 is a deficient number, since it is larger than the sum of its proper divisors (129549979).

442447265 is an frugal number, since it uses more digits than its factorization.

442447265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5236 (or 2627 counting only the distinct ones).

The product of its digits is 215040, while the sum is 38.

The square root of 442447265 is about 21034.4304653109. The cubic root of 442447265 is about 761.9980119723.

The spelling of 442447265 in words is "four hundred forty-two million, four hundred forty-seven thousand, two hundred sixty-five".