30445345 has 16 divisors (see below), whose sum is σ = 41902848. Its totient is φ = 20802240.

The previous prime is 30445291. The next prime is 30445381. The reversal of 30445345 is 54354403.

It is not a de Polignac number, because 30445345 - 2⁹ = 30444833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9487 + ... + 12283.

It is an arithmetic number, because the mean of its divisors is an integer number (2618928).

Almost surely, 2^30445345 is an apocalyptic number.

30445345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30445345 is a deficient number, since it is larger than the sum of its proper divisors (11457503).

30445345 is a wasteful number, since it uses less digits than its factorization.

30445345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 30445345 is about 5517.7300586382. The cubic root of 30445345 is about 312.2532494833.

Adding to 30445345 its reverse (54354403), we get a palindrome (84799748).

The spelling of 30445345 in words is "thirty million, four hundred forty-five thousand, three hundred forty-five".