354544321 has 4 divisors (see below), whose sum is σ = 354582100. Its totient is φ = 354506544.

The previous prime is 354544273. The next prime is 354544327. The reversal of 354544321 is 123445453.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 123445453 = 47 ⋅2626499.

It can be written as a sum of positive squares in 2 ways, for example, as 293094400 + 61449921 = 17120^2 + 7839^2 .

It is a cyclic number.

It is not a de Polignac number, because 354544321 - 2⁷ = 354544193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354544327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7195 + ... + 27583.

It is an arithmetic number, because the mean of its divisors is an integer number (88645525).

Almost surely, 2^354544321 is an apocalyptic number.

It is an amenable number.

354544321 is a deficient number, since it is larger than the sum of its proper divisors (37779).

354544321 is a wasteful number, since it uses less digits than its factorization.

354544321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37778.

The product of its digits is 28800, while the sum is 31.

The square root of 354544321 is about 18829.3473333517. The cubic root of 354544321 is about 707.7667852271.

Adding to 354544321 its reverse (123445453), we get a palindrome (477989774).

The spelling of 354544321 in words is "three hundred fifty-four million, five hundred forty-four thousand, three hundred twenty-one".