30394645 has 8 divisors (see below), whose sum is σ = 36973656. Its totient is φ = 23982336.

The previous prime is 30394643. The next prime is 30394667. The reversal of 30394645 is 54649303.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3944196 + 26450449 = 1986^2 + 5143^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30394645 - 2¹ = 30394643 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 30394645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30394643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41272 + ... + 42001.

It is an arithmetic number, because the mean of its divisors is an integer number (4621707).

Almost surely, 2^30394645 is an apocalyptic number.

It is an amenable number.

30394645 is a deficient number, since it is larger than the sum of its proper divisors (6579011).

30394645 is an equidigital number, since it uses as much as digits as its factorization.

30394645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83351.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 30394645 is about 5513.1338637838. The cubic root of 30394645 is about 312.0798235655.

The spelling of 30394645 in words is "thirty million, three hundred ninety-four thousand, six hundred forty-five".