354531223220 has 24 divisors (see below), whose sum is σ = 744539145000. Its totient is φ = 141807998592.

The previous prime is 354531223213. The next prime is 354531223223. The reversal of 354531223220 is 22322135453.

It can be written as a sum of positive squares in 4 ways, for example, as 116912021776 + 237619201444 = 341924^2 + 487462^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354531223223) 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, 407906 + ... + 935654.

It is an arithmetic number, because the mean of its divisors is an integer number (31022464375).

Almost surely, 2^354531223220 is an apocalyptic number.

It is an amenable number.

354531223220 is an abundant number, since it is smaller than the sum of its proper divisors (390007921780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

354531223220 is a wasteful number, since it uses less digits than its factorization.

354531223220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561347 (or 561345 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 354531223220 its reverse (22322135453), we get a palindrome (376853358673).

The spelling of 354531223220 in words is "three hundred fifty-four billion, five hundred thirty-one million, two hundred twenty-three thousand, two hundred twenty".