442991676404 has 6 divisors (see below), whose sum is σ = 775235433714. Its totient is φ = 221495838200.

The previous prime is 442991676389. The next prime is 442991676431. The reversal of 442991676404 is 404676199244.

It can be written as a sum of positive squares in only one way, i.e., 420614508304 + 22377168100 = 648548^2 + 149590^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 442991676404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55373959547 + ... + 55373959554.

It is an arithmetic number, because the mean of its divisors is an integer number (129205905619).

Almost surely, 2^442991676404 is an apocalyptic number.

It is an amenable number.

442991676404 is a deficient number, since it is larger than the sum of its proper divisors (332243757310).

442991676404 is a wasteful number, since it uses less digits than its factorization.

442991676404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110747919105 (or 110747919103 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 56.

The spelling of 442991676404 in words is "four hundred forty-two billion, nine hundred ninety-one million, six hundred seventy-six thousand, four hundred four".