442031989460 has 48 divisors (see below), whose sum is σ = 953473018176. Its totient is φ = 172075276032.

The previous prime is 442031989459. The next prime is 442031989489. The reversal of 442031989460 is 64989130244.

It is a junction number, because it is equal to n+sod(n) for n = 442031989399 and 442031989408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1875977 + ... + 2098416.

It is an arithmetic number, because the mean of its divisors is an integer number (19864021212).

Almost surely, 2^442031989460 is an apocalyptic number.

It is an amenable number.

442031989460 is an abundant number, since it is smaller than the sum of its proper divisors (511441028716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442031989460 is a wasteful number, since it uses less digits than its factorization.

442031989460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3974552 (or 3974550 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 50.

The spelling of 442031989460 in words is "four hundred forty-two billion, thirty-one million, nine hundred eighty-nine thousand, four hundred sixty".