30004205 has 16 divisors (see below), whose sum is σ = 44889984. Its totient is φ = 18703680.

The previous prime is 30004199. The next prime is 30004207. The reversal of 30004205 is 50240003.

It is not a de Polignac number, because 30004205 - 2¹² = 30000109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30004205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30004207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38582 + ... + 39351.

It is an arithmetic number, because the mean of its divisors is an integer number (2805624).

Almost surely, 2^30004205 is an apocalyptic number.

30004205 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30004205 is a deficient number, since it is larger than the sum of its proper divisors (14885779).

30004205 is a wasteful number, since it uses less digits than its factorization.

30004205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77956.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 30004205 is about 5477.6094238271. The cubic root of 30004205 is about 310.7377675979.

Adding to 30004205 its reverse (50240003), we get a palindrome (80244208).

The spelling of 30004205 in words is "thirty million, four thousand, two hundred five".