354521443 has 4 divisors (see below), whose sum is σ = 358504920. Its totient is φ = 350537968.

The previous prime is 354521429. The next prime is 354521449. The reversal of 354521443 is 344125453.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 354521443 - 2⁵ = 354521411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354521449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1991605 + ... + 1991782.

It is an arithmetic number, because the mean of its divisors is an integer number (89626230).

Almost surely, 2^354521443 is an apocalyptic number.

354521443 is a deficient number, since it is larger than the sum of its proper divisors (3983477).

354521443 is an equidigital number, since it uses as much as digits as its factorization.

354521443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3983476.

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

The square root of 354521443 is about 18828.7398144432. The cubic root of 354521443 is about 707.7515613318.

Adding to 354521443 its reverse (344125453), we get a palindrome (698646896).

The spelling of 354521443 in words is "three hundred fifty-four million, five hundred twenty-one thousand, four hundred forty-three".