30450645 has 24 divisors (see below), whose sum is σ = 53006616. Its totient is φ = 16171008.

The previous prime is 30450631. The next prime is 30450647. The reversal of 30450645 is 54605403.

It can be written as a sum of positive squares in 4 ways, for example, as 6185169 + 24265476 = 2487^2 + 4926^2 .

It is not a de Polignac number, because 30450645 - 2¹⁶ = 30385109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30450647) 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 23 ways as a sum of consecutive naturals, for example, 10249 + ... + 12881.

It is an arithmetic number, because the mean of its divisors is an integer number (2208609).

Almost surely, 2^30450645 is an apocalyptic number.

It is an amenable number.

30450645 is a deficient number, since it is larger than the sum of its proper divisors (22555971).

30450645 is a wasteful number, since it uses less digits than its factorization.

30450645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901 (or 2898 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 30450645 is about 5518.2103076994. The cubic root of 30450645 is about 312.2713677014.

The spelling of 30450645 in words is "thirty million, four hundred fifty thousand, six hundred forty-five".