345403103440 has 20 divisors (see below), whose sum is σ = 803062215684. Its totient is φ = 138161241344.

The previous prime is 345403103429. The next prime is 345403103443. The reversal of 345403103440 is 44301304543.

It can be written as a sum of positive squares in 2 ways, for example, as 87838733376 + 257564370064 = 296376^2 + 507508^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345403103443) 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, 2158769317 + ... + 2158769476.

Almost surely, 2^345403103440 is an apocalyptic number.

It is an amenable number.

345403103440 is an abundant number, since it is smaller than the sum of its proper divisors (457659112244).

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

345403103440 is a wasteful number, since it uses less digits than its factorization.

345403103440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4317538806 (or 4317538800 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 345403103440 its reverse (44301304543), we get a palindrome (389704407983).

The spelling of 345403103440 in words is "three hundred forty-five billion, four hundred three million, one hundred three thousand, four hundred forty".