442545646545244 has 24 divisors (see below), whose sum is σ = 851842183668336. Its totient is φ = 201157112063600.

The previous prime is 442545646545239. The next prime is 442545646545271.

442545646545244 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×442545646545244² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41561381467 + ... + 41561392114.

It is an arithmetic number, because the mean of its divisors is an integer number (35493424319514).

Almost surely, 2^{442545646545244} is an apocalyptic number.

442545646545244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

442545646545244 is a deficient number, since it is larger than the sum of its proper divisors (409296537123092).

442545646545244 is a wasteful number, since it uses less digits than its factorization.

442545646545244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83122773618 (or 83122773594 counting only the distinct ones).

The product of its digits is 1474560000, while the sum is 64.

The spelling of 442545646545244 in words is "four hundred forty-two trillion, five hundred forty-five billion, six hundred forty-six million, five hundred forty-five thousand, two hundred forty-four".