30208805 has 16 divisors (see below), whose sum is σ = 39916800. Its totient is φ = 21764160.

The previous prime is 30208793. The next prime is 30208811. The reversal of 30208805 is 50880203.

It is not a de Polignac number, because 30208805 - 2²⁴ = 13431589 is a prime.

It is a Curzon number.

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, 3476 + ... + 8514.

It is an arithmetic number, because the mean of its divisors is an integer number (2494800).

Almost surely, 2^30208805 is an apocalyptic number.

It is an amenable number.

30208805 is a deficient number, since it is larger than the sum of its proper divisors (9707995).

30208805 is a wasteful number, since it uses less digits than its factorization.

30208805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5164.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 30208805 is about 5496.2537241288. The cubic root of 30208805 is about 311.4424797196.

It can be divided in two parts, 30208 and 805, that added together give a palindrome (31013).

The spelling of 30208805 in words is "thirty million, two hundred eight thousand, eight hundred five".