345404438544 has 80 divisors (see below), whose sum is σ = 1024644775680. Its totient is φ = 99159166080.

The previous prime is 345404438543. The next prime is 345404438629. The reversal of 345404438544 is 445834404543.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 345404438493 and 345404438502.

It is not an unprimeable number, because it can be changed into a prime (345404438543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17205102 + ... + 17225165.

It is an arithmetic number, because the mean of its divisors is an integer number (12808059696).

Almost surely, 2^345404438544 is an apocalyptic number.

It is an amenable number.

345404438544 is an abundant number, since it is smaller than the sum of its proper divisors (679240337136).

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

345404438544 is a wasteful number, since it uses less digits than its factorization.

345404438544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34430308 (or 34430302 counting only the distinct ones).

The product of its (nonzero) digits is 7372800, while the sum is 48.

The spelling of 345404438544 in words is "three hundred forty-five billion, four hundred four million, four hundred thirty-eight thousand, five hundred forty-four".