30506016 has 24 divisors (see below), whose sum is σ = 80078544. Its totient is φ = 10168640.

The previous prime is 30506011. The next prime is 30506017. The reversal of 30506016 is 61060503.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 30505983 and 30506001.

It is not an unprimeable number, because it can be changed into a prime (30506011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158790 + ... + 158981.

It is an arithmetic number, because the mean of its divisors is an integer number (3336606).

Almost surely, 2^30506016 is an apocalyptic number.

It is an amenable number.

30506016 is an abundant number, since it is smaller than the sum of its proper divisors (49572528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30506016 is a wasteful number, since it uses less digits than its factorization.

30506016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317784 (or 317776 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 30506016 is about 5523.2251447863. The cubic root of 30506016 is about 312.4605296282.

Adding to 30506016 its reverse (61060503), we get a palindrome (91566519).

The spelling of 30506016 in words is "thirty million, five hundred six thousand, sixteen".