442627689 has 16 divisors (see below), whose sum is σ = 683722112. Its totient is φ = 249464448.

The previous prime is 442627687. The next prime is 442627699. The reversal of 442627689 is 986726244.

It is not a de Polignac number, because 442627689 - 2¹ = 442627687 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (442627687) 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, 142834 + ... + 145899.

It is an arithmetic number, because the mean of its divisors is an integer number (42732632).

Almost surely, 2^442627689 is an apocalyptic number.

It is an amenable number.

442627689 is a deficient number, since it is larger than the sum of its proper divisors (241094423).

442627689 is a wasteful number, since it uses less digits than its factorization.

442627689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288816.

The product of its digits is 1161216, while the sum is 48.

The square root of 442627689 is about 21038.7188060490. The cubic root of 442627689 is about 762.1015753847.

The spelling of 442627689 in words is "four hundred forty-two million, six hundred twenty-seven thousand, six hundred eighty-nine".