30980005 has 24 divisors (see below), whose sum is σ = 44651520. Its totient is φ = 20553120.

The previous prime is 30979997. The next prime is 30980017. The reversal of 30980005 is 50008903.

It is not a de Polignac number, because 30980005 - 2³ = 30979997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5556 + ... + 9634.

It is an arithmetic number, because the mean of its divisors is an integer number (1860480).

Almost surely, 2^30980005 is an apocalyptic number.

30980005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30980005 is a deficient number, since it is larger than the sum of its proper divisors (13671515).

30980005 is a wasteful number, since it uses less digits than its factorization.

30980005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4129 (or 4122 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 30980005 is about 5565.9684691884. The cubic root of 30980005 is about 314.0705110289.

Adding to 30980005 its reverse (50008903), we get a palindrome (80988908).

The spelling of 30980005 in words is "thirty million, nine hundred eighty thousand, five".