30403305445 has 16 divisors (see below), whose sum is σ = 37509417792. Its totient is φ = 23644373760.

The previous prime is 30403305391. The next prime is 30403305451. The reversal of 30403305445 is 54450330403.

It is a de Polignac number, because none of the positive numbers 2^k-30403305445 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289732 + ... + 380461.

It is an arithmetic number, because the mean of its divisors is an integer number (2344338612).

Almost surely, 2^30403305445 is an apocalyptic number.

It is an amenable number.

30403305445 is a deficient number, since it is larger than the sum of its proper divisors (7106112347).

30403305445 is a wasteful number, since it uses less digits than its factorization.

30403305445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670452.

The product of its (nonzero) digits is 43200, while the sum is 31.

Adding to 30403305445 its reverse (54450330403), we get a palindrome (84853635848).

The spelling of 30403305445 in words is "thirty billion, four hundred three million, three hundred five thousand, four hundred forty-five".