30808245 has 16 divisors (see below), whose sum is σ = 53085312. Its totient is φ = 15167040.

The previous prime is 30808223. The next prime is 30808259. The reversal of 30808245 is 54280803.

It is not a de Polignac number, because 30808245 - 2⁶ = 30808181 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78801 + ... + 79190.

It is an arithmetic number, because the mean of its divisors is an integer number (3317832).

Almost surely, 2^30808245 is an apocalyptic number.

It is an amenable number.

30808245 is a deficient number, since it is larger than the sum of its proper divisors (22277067).

30808245 is a wasteful number, since it uses less digits than its factorization.

30808245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158012.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 30808245 is about 5550.5175434368. The cubic root of 30808245 is about 313.4890095834.

It can be divided in two parts, 3080 and 8245, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 30808245 in words is "thirty million, eight hundred eight thousand, two hundred forty-five".