354442434221 has 8 divisors (see below), whose sum is σ = 373128866400. Its totient is φ = 335759158800.

The previous prime is 354442434209. The next prime is 354442434253. The reversal of 354442434221 is 122434244453.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 354442434221 - 2¹⁰ = 354442433197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354442434271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556955 + ... + 1009496.

It is an arithmetic number, because the mean of its divisors is an integer number (46641108300).

Almost surely, 2^354442434221 is an apocalyptic number.

It is an amenable number.

354442434221 is a deficient number, since it is larger than the sum of its proper divisors (18686432179).

354442434221 is a wasteful number, since it uses less digits than its factorization.

354442434221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578379.

The product of its digits is 368640, while the sum is 38.

Adding to 354442434221 its reverse (122434244453), we get a palindrome (476876678674).

The spelling of 354442434221 in words is "three hundred fifty-four billion, four hundred forty-two million, four hundred thirty-four thousand, two hundred twenty-one".