345454443404420 has 96 divisors (see below), whose sum is σ = 830204858246400. Its totient is φ = 118282445858304.

The previous prime is 345454443404363. The next prime is 345454443404429. The reversal of 345454443404420 is 24404344454543.

It is not an unprimeable number, because it can be changed into a prime (345454443404429) 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 31 ways as a sum of consecutive naturals, for example, 357431186 + ... + 358396374.

It is an arithmetic number, because the mean of its divisors is an integer number (8647967273400).

Almost surely, 2^{345454443404420} is an apocalyptic number.

It is an amenable number.

345454443404420 is an abundant number, since it is smaller than the sum of its proper divisors (484750414841980).

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

345454443404420 is a wasteful number, since it uses less digits than its factorization.

345454443404420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968637 (or 968635 counting only the distinct ones).

The product of its (nonzero) digits is 29491200, while the sum is 50.

Adding to 345454443404420 its reverse (24404344454543), we get a palindrome (369858787858963).

The spelling of 345454443404420 in words is "three hundred forty-five trillion, four hundred fifty-four billion, four hundred forty-three million, four hundred four thousand, four hundred twenty".