390041435221 has 16 divisors (see below), whose sum is σ = 395144676864. Its totient is φ = 384969037824.

The previous prime is 390041435209. The next prime is 390041435261. The reversal of 390041435221 is 122534140093.

It is a cyclic number.

It is not a de Polignac number, because 390041435221 - 2¹⁹ = 390040910933 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 (390041435261) 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, 64498620 + ... + 64504666.

It is an arithmetic number, because the mean of its divisors is an integer number (24696542304).

Almost surely, 2^390041435221 is an apocalyptic number.

It is an amenable number.

390041435221 is a deficient number, since it is larger than the sum of its proper divisors (5103241643).

390041435221 is a wasteful number, since it uses less digits than its factorization.

390041435221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8460.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 390041435221 in words is "three hundred ninety billion, forty-one million, four hundred thirty-five thousand, two hundred twenty-one".