390044440093 has 16 divisors (see below), whose sum is σ = 486569943936. Its totient is φ = 303755250240.

The previous prime is 390044440057. The next prime is 390044440141.

390044440093 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 390044440093 - 2⁹ = 390044439581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390044740093) 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, 1328046 + ... + 1594927.

It is an arithmetic number, because the mean of its divisors is an integer number (30410621496).

Almost surely, 2^390044440093 is an apocalyptic number.

It is an amenable number.

390044440093 is a deficient number, since it is larger than the sum of its proper divisors (96525503843).

390044440093 is a wasteful number, since it uses less digits than its factorization.

390044440093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924724.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 390044440093 in words is "three hundred ninety billion, forty-four million, four hundred forty thousand, ninety-three".