442031989427 has 16 divisors (see below), whose sum is σ = 558152197632. Its totient is φ = 341093005440.

The previous prime is 442031989391. The next prime is 442031989447. The reversal of 442031989427 is 724989130244.

It is a cyclic number.

It is not a de Polignac number, because 442031989427 - 2¹⁶ = 442031923891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442031989447) 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, 80748449 + ... + 80753922.

It is an arithmetic number, because the mean of its divisors is an integer number (34884512352).

Almost surely, 2^442031989427 is an apocalyptic number.

442031989427 is a deficient number, since it is larger than the sum of its proper divisors (116120208205).

442031989427 is a wasteful number, since it uses less digits than its factorization.

442031989427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161502418.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 442031989427 in words is "four hundred forty-two billion, thirty-one million, nine hundred eighty-nine thousand, four hundred twenty-seven".