30888285 has 16 divisors (see below), whose sum is σ = 49711104. Its totient is φ = 16377152.

The previous prime is 30888257. The next prime is 30888301. The reversal of 30888285 is 58288803.

It is a cyclic number.

It is not a de Polignac number, because 30888285 - 2¹⁰ = 30887261 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, 3357 + ... + 8546.

It is an arithmetic number, because the mean of its divisors is an integer number (3106944).

Almost surely, 2^30888285 is an apocalyptic number.

It is an amenable number.

30888285 is a deficient number, since it is larger than the sum of its proper divisors (18822819).

30888285 is a wasteful number, since it uses less digits than its factorization.

30888285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12084.

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 30888285 is about 5557.7230049725. The cubic root of 30888285 is about 313.7602569093.

The spelling of 30888285 in words is "thirty million, eight hundred eighty-eight thousand, two hundred eighty-five".