442287849431 has 16 divisors (see below), whose sum is σ = 465022565568. Its totient is φ = 419847014400.

The previous prime is 442287849427. The next prime is 442287849469. The reversal of 442287849431 is 134948782244.

It is a cyclic number.

It is not a de Polignac number, because 442287849431 - 2² = 442287849427 is a prime.

It is a super-2 number, since 2×442287849431² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442287849401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11832251 + ... + 11869571.

It is an arithmetic number, because the mean of its divisors is an integer number (29063910348).

Almost surely, 2^442287849431 is an apocalyptic number.

442287849431 is a deficient number, since it is larger than the sum of its proper divisors (22734716137).

442287849431 is a wasteful number, since it uses less digits than its factorization.

442287849431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41242.

The product of its digits is 12386304, while the sum is 56.

The spelling of 442287849431 in words is "four hundred forty-two billion, two hundred eighty-seven million, eight hundred forty-nine thousand, four hundred thirty-one".