439660494546 has 256 divisors, whose sum is σ = 1122818457600. Its totient is φ = 114029475840.

The previous prime is 439660494521. The next prime is 439660494547. The reversal of 439660494546 is 645494066934.

It is a happy number.

It is a super-2 number, since 2×439660494546² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 439660494546.

It is not an unprimeable number, because it can be changed into a prime (439660494547) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 495670915 + ... + 495671801.

It is an arithmetic number, because the mean of its divisors is an integer number (4386009600).

Almost surely, 2^439660494546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 439660494546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (561409228800).

439660494546 is an abundant number, since it is smaller than the sum of its proper divisors (683157963054).

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

439660494546 is a wasteful number, since it uses less digits than its factorization.

439660494546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 60.

The spelling of 439660494546 in words is "four hundred thirty-nine billion, six hundred sixty million, four hundred ninety-four thousand, five hundred forty-six".