30880005 has 16 divisors (see below), whose sum is σ = 53208960. Its totient is φ = 15202368.

The previous prime is 30879991. The next prime is 30880009. The reversal of 30880005 is 50008803.

It is not a de Polignac number, because 30880005 - 2⁸ = 30879749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30880009) 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, 78985 + ... + 79374.

It is an arithmetic number, because the mean of its divisors is an integer number (3325560).

Almost surely, 2^30880005 is an apocalyptic number.

It is an amenable number.

30880005 is a deficient number, since it is larger than the sum of its proper divisors (22328955).

30880005 is a wasteful number, since it uses less digits than its factorization.

30880005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158380.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 30880005 is about 5556.9780456647. The cubic root of 30880005 is about 313.7322185867.

Adding to 30880005 its reverse (50008803), we get a palindrome (80888808).

The spelling of 30880005 in words is "thirty million, eight hundred eighty thousand, five".