439493949394 has 16 divisors (see below), whose sum is σ = 681148244736. Its totient is φ = 212457898800.

The previous prime is 439493949383. The next prime is 439493949397. The reversal of 439493949394 is 493949394934.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (439493949397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3274752 + ... + 3406315.

It is an arithmetic number, because the mean of its divisors is an integer number (42571765296).

Almost surely, 2^439493949394 is an apocalyptic number.

439493949394 is a deficient number, since it is larger than the sum of its proper divisors (241654295342).

439493949394 is a wasteful number, since it uses less digits than its factorization.

439493949394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6682161.

The product of its digits is 408146688, while the sum is 70.

The spelling of 439493949394 in words is "four hundred thirty-nine billion, four hundred ninety-three million, nine hundred forty-nine thousand, three hundred ninety-four".