30745450 has 12 divisors (see below), whose sum is σ = 57186630. Its totient is φ = 12298160.

The previous prime is 30745433. The next prime is 30745499. The reversal of 30745450 is 5454703.

It can be written as a sum of positive squares in 3 ways, for example, as 21930489 + 8814961 = 4683^2 + 2969^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 307405 + ... + 307504.

Almost surely, 2^30745450 is an apocalyptic number.

30745450 is a deficient number, since it is larger than the sum of its proper divisors (26441180).

30745450 is a wasteful number, since it uses less digits than its factorization.

30745450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614921 (or 614916 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 30745450 is about 5544.8579783435. The cubic root of 30745450 is about 313.2758747313.

The spelling of 30745450 in words is "thirty million, seven hundred forty-five thousand, four hundred fifty".