4390806844212 has 48 divisors (see below), whose sum is σ = 10272081211392. Its totient is φ = 1459769199840.

The previous prime is 4390806844093. The next prime is 4390806844217. The reversal of 4390806844212 is 2124486080934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4390806844217) 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, 7022293 + ... + 7621955.

It is an arithmetic number, because the mean of its divisors is an integer number (214001691904).

Almost surely, 2^{4390806844212} is an apocalyptic number.

It is an amenable number.

4390806844212 is an abundant number, since it is smaller than the sum of its proper divisors (5881274367180).

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

4390806844212 is a wasteful number, since it uses less digits than its factorization.

4390806844212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601268 (or 601266 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 51.

The spelling of 4390806844212 in words is "four trillion, three hundred ninety billion, eight hundred six million, eight hundred forty-four thousand, two hundred twelve".