30216020 has 24 divisors (see below), whose sum is σ = 66213504. Its totient is φ = 11560736.

The previous prime is 30215993. The next prime is 30216029. The reversal of 30216020 is 2061203.

It is a junction number, because it is equal to n+sod(n) for n = 30215986 and 30216004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30216029) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 32384 + ... + 33303.

It is an arithmetic number, because the mean of its divisors is an integer number (2758896).

Almost surely, 2^30216020 is an apocalyptic number.

It is an amenable number.

30216020 is an abundant number, since it is smaller than the sum of its proper divisors (35997484).

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

30216020 is a wasteful number, since it uses less digits than its factorization.

30216020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65719 (or 65717 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30216020 is about 5496.9100411049. The cubic root of 30216020 is about 311.4672724759.

Adding to 30216020 its reverse (2061203), we get a palindrome (32277223).

The spelling of 30216020 in words is "thirty million, two hundred sixteen thousand, twenty".