30730885 has 16 divisors (see below), whose sum is σ = 39461760. Its totient is φ = 22904640.

The previous prime is 30730877. The next prime is 30730901. The reversal of 30730885 is 58803703.

It is not a de Polignac number, because 30730885 - 2³ = 30730877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30730885.

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, 3144 + ... + 8446.

It is an arithmetic number, because the mean of its divisors is an integer number (2466360).

Almost surely, 2^30730885 is an apocalyptic number.

It is an amenable number.

30730885 is a deficient number, since it is larger than the sum of its proper divisors (8730875).

30730885 is a wasteful number, since it uses less digits than its factorization.

30730885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5388.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 30730885 is about 5543.5444437652. The cubic root of 30730885 is about 313.2263976670.

The spelling of 30730885 in words is "thirty million, seven hundred thirty thousand, eight hundred eighty-five".