345643403 has 12 divisors (see below), whose sum is σ = 402772032. Its totient is φ = 295752240.

The previous prime is 345643399. The next prime is 345643409. The reversal of 345643403 is 304346543.

It is not a de Polignac number, because 345643403 - 2² = 345643399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345643403.

It is not an unprimeable number, because it can be changed into a prime (345643409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23933 + ... + 35553.

It is an arithmetic number, because the mean of its divisors is an integer number (33564336).

Almost surely, 2^345643403 is an apocalyptic number.

345643403 is a deficient number, since it is larger than the sum of its proper divisors (57128629).

345643403 is a wasteful number, since it uses less digits than its factorization.

345643403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12242 (or 12235 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 32.

The square root of 345643403 is about 18591.4873799812. The cubic root of 345643403 is about 701.7936335205.

Adding to 345643403 its reverse (304346543), we get a palindrome (649989946).

The spelling of 345643403 in words is "three hundred forty-five million, six hundred forty-three thousand, four hundred three".