442779086 has 8 divisors (see below), whose sum is σ = 665055264. Its totient is φ = 221094000.

The previous prime is 442779061. The next prime is 442779089. The reversal of 442779086 is 680977244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 442779086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442779089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145895 + ... + 148898.

It is an arithmetic number, because the mean of its divisors is an integer number (83131908).

Almost surely, 2^442779086 is an apocalyptic number.

442779086 is a deficient number, since it is larger than the sum of its proper divisors (222276178).

442779086 is a wasteful number, since it uses less digits than its factorization.

442779086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295546.

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 442779086 is about 21042.3165549803. The cubic root of 442779086 is about 762.1884555797.

The spelling of 442779086 in words is "four hundred forty-two million, seven hundred seventy-nine thousand, eighty-six".