345351334420 has 24 divisors (see below), whose sum is σ = 730531514664. Its totient is φ = 137132207616.

The previous prime is 345351334403. The next prime is 345351334429. The reversal of 345351334420 is 24433153543.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 111345011856 + 234006322564 = 333684^2 + 483742^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 345351334420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345351334429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63017577 + ... + 63023056.

It is an arithmetic number, because the mean of its divisors is an integer number (30438813111).

Almost surely, 2^345351334420 is an apocalyptic number.

It is an amenable number.

345351334420 is an abundant number, since it is smaller than the sum of its proper divisors (385180180244).

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

345351334420 is a wasteful number, since it uses less digits than its factorization.

345351334420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126040779 (or 126040777 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 37.

Adding to 345351334420 its reverse (24433153543), we get a palindrome (369784487963).

The spelling of 345351334420 in words is "three hundred forty-five billion, three hundred fifty-one million, three hundred thirty-four thousand, four hundred twenty".