30205045 has 16 divisors (see below), whose sum is σ = 39352320. Its totient is φ = 22123584.

The previous prime is 30205031. The next prime is 30205051. The reversal of 30205045 is 54050203.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30205045 - 2¹³ = 30196853 is a prime.

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, 6426 + ... + 10084.

It is an arithmetic number, because the mean of its divisors is an integer number (2459520).

Almost surely, 2^30205045 is an apocalyptic number.

It is an amenable number.

30205045 is a deficient number, since it is larger than the sum of its proper divisors (9147275).

30205045 is a wasteful number, since it uses less digits than its factorization.

30205045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3804.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 30205045 is about 5495.9116623177. The cubic root of 30205045 is about 311.4295577441.

Adding to 30205045 its reverse (54050203), we get a palindrome (84255248).

The spelling of 30205045 in words is "thirty million, two hundred five thousand, forty-five".